Here is couple of more scriptures from the Old Testament proving that God rewards one's obedience to Him-

So you shall serve the Lord your God, and He will bless your bread and your water. And I will take sickness away from the middle of you
(Exodus 23:25).

And all these blessings shall come upon you and overtake you, because you obey the voice of the Lord your God-
Blessed shall you be in the city, and blessed shall you be in the country. Blessed shall be the fruit of your body, the produce of your ground and the increase of your herds, the increase of your cattle and the offspring of your flocks. Blessed shall be your basket and your kneading bowl. Blessed shall you be when you come in, and blessed shall you be when you go out. The Lord will cause your enemies who rise against you to be defeated before your face- they shall come out against you one way and flee before you seven ways. The Lord will command the blessing on you in your storehouses and in all to which you set your hand, and He will bless you in the land that the Lord your God is giving you. The Lord will establish you as a holy people to Himself, just as He has sworn to you, if you keep the commandments of the Lord your God and walk in His ways. Then all peoples of the earth shall see that you are called by the name of the Lord, and they shall be afraid of you. And the Lord will grant you plenty of goods, in the fruit of your body, in the increase of your livestock, and in the produce of your ground, in the land of that the Lord swore to your fathers to give you. The Lord will open to you His good treasure, the heavens, to give the rain to your land in its season, and to bless all the work of your hand. You shall lend to many nations, but you shall not borrow. And the Lord will make you the head and not the tail- you shall be above only, and not be beneath, if you heed the commandments of the Lord your God, that I command you today, and are careful to observe them. So you shall not turn aside from any of the words that I command you this day, to the right or the left, to go after other gods to serve them
(Deuteronomy 28:2-14).

It appears a fulfillment of these prophesies can be found in the Bible Books of Matthew and Luke

Blessed is that servant whom His master, when He comes, will find so doing
(Matthew 24:46).

Then Jesus answered and said- a certain man went down from Jerusalem to Jericho, and fell among thieves, who stripped him of his clothing, wounded him, and departed, leaving him half dead. Now by chance a certain priest came down that road. And when he saw him, he passed by on the other side. Likewise a Levite, when he arrived at the place, came and looked, and passed by on the other side. But a certain Samaritan, as he journeyed, came where he was. And when he saw him, he had compassion. So he went to him and bandaged his wounds, pouring on oil and wine- and he set him on his own animal, brought him to an inn, and took care of him. On the next day, when he departed, he took out two denarii, gave them to the innkeeper, and said to him- take care of him- and whatever more you spend, when I come again, I will repay you. So which of these three do you think was neighbor to him who fell among the thieves? And he said- he who showed mercy on him. Then Jesus said to him- Go and do likewise
(Luke 10:30-37).

Then as He entered a certain village, there met Him ten men who were lepers, who stood afar off. And they lifted up their voices and said- Jesus, Master, have mercy on us! So when He saw them, He said to them- go, show yourselves to the priests. And so it was that as they went, they were cleansed. And one of them, when he saw that he was healed, returned, and with a loud voice glorified God, and fell down on his face at His feet, giving Him thanks. And he was a Samaritan. So Jesus answered and said- were there not ten cleansed? But where are the nine? Were there not any found who returned to give glory to God except this foreigner? And He said to him- arise, go your way. Your faith has made you well
(Luke 17:12-19).

These scriptures are found in Isaiah-

It appears a fulfillment of this prophesy can be found in the Bible Book of Matthew

...then the King will say to those on His right hand- come, you blessed of My Father, inherit the kingdom prepared for you from the foundation of the world- for I was hungry and you gave Me food- I was thirsty and you gave Me drink- I was a stranger and you took Me in- I was naked and you clothed Me- I was sick and you visited Me- I was in prison and you came to Me. Then the righteous will answer Him, saying- Lord, when did we see You hungry and feed You, or thirsty and give You drink? When did we see You a stranger and take You in, or naked and clothe You? Or when did we see You sick, or in prison, and come to You? And the King will answer and say to them- Assuredly, I say to you, inasmuch as you did it to one of the least of these My brethren, you did it to Me
(Matthew 25:34-40).

These scriptures are found in Isaiah-
Listen to Me, all of you in far-off lands! The Lord called Me before My birth- from within the womb He called Me by name. He made My words of judgment as sharp as a sword. He has hidden Me in the shadow of His hand. I AM like a sharp arrow in His quiver. He said to Me- you are My servant, Israel, and you will bring Me glory. I replied- but my work all seems so useless! I have spent my strength for nothing and to no purpose at all. Yet I leave it all in the Lord's hand- I will trust God for my reward. And now the Lord speaks- He who formed me in my mother's womb to be His servant, who commissioned me to bring His people of Israel back to Him. The Lord has honored me, and my God has given me strength. He says- You will do more than restore the people of Israel to Me. I will make you a light to the Gentiles, and you will bring My salvation to the ends of the earth
(Isaiah 49:1-5).

It appears a fulfillment of this prophesy can be found in the Bible Books of Revelation, Matthew, Luke, John, Ephesians, and Hebrews

Repent, or else I will come to you quickly and will fight against them with the sword of My mouth
(Revelation 2:16).

Therefore whoever confesses Me before men, him I will also confess before My Father who is in Heaven. But whoever denies Me before men, him I will also deny before My Father who is in Heaven. Do not think that I came to bring peace on earth. I did not come to bring peace but a (spiritual) sword. For I have come to set a man against his father, a daughter against her mother, and a daughter-in-law against her mother-in-law- and a man's enemies will be those of his own household. He who loves father or mother more than Me is not worthy of Me. And he who loves son or daughter more than Me is not worthy of Me. And he who does not take his cross and follow after Me is not worthy of Me. He who finds his life will lose it, and he who loses his life for My sake will find it
(Matthew 10:32-39).

Then He said to them- but now, he who has a money bag, let him take it, and likewise a knapsack- and he who has no (spiritual) sword, let him sell his garment and buy one. For I say to you that this that is written must still be accomplished in Me- and He was numbered with the transgressors. For the things concerning Me have an end. So they said- Lord, look, here are two swords. And He said to them- it is enough
(Luke 22:36-38).

Then Simon Peter, having a sword, drew it and struck the high priest's servant, and cut off his right ear. The servant's name was Malchus. So Jesus said to Peter- put your (literal) sword into the sheath. Shall I not drink the cup (of suffering) that My Father has given Me?
(John 18:10-11).

But Jesus said to him- put your sword in its place, for all who take the (literal) sword will perish by the sword. Or do you think that I cannot now pray to My Father, and He will provide Me with more than twelve legions of angels? How then could the Scriptures be fulfilled, that it must happen thus?
(Matthew 26:52-54).

And take the helmet of salvation, and the sword of the Spirit, that is the word of God...
(Ephesians 6:17).

For the word of God is living and powerful, and sharper than any two-edged sword, piercing even to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart
(Hebrews 4:12).

You (God) Are the Potter, Each Overcomer is the Clay

This scripture is found in Isaiah-
But now, O Lord, You are our Father- we are the clay, and You our potter- and all we are the work of Your hand
(Isaiah 64:8).

It appears a fulfillment of this prophesy can be found in the Bible Book of Romans
But, O man, who are you, to make answer against God? May the thing that is made say to Him who made it, why did you make me so? Or has not the potter the right to make out of one part of His earth a vessel for honor, and another for dishonor?
(Romans 9:20-21).

The Fiery Trial

It appears a referance to a severe test or trial (a spiritual furnace of affliction) can also be found in the Bible Books of Matthew, Luke, First Corinthians, and Second Corinthians

Now when the tempter came to Him (a hungry Jesus), he said- if You are the Son of God, command that these stones become bread. But He answered and said- it is written- man shall not live by bread alone, but by every word that proceeds from the mouth of God
(Matthew 4:3-4).

And being in agony, He (Jesus) prayed more earnestly. Then His sweat became like great drops of blood falling down to the ground
(Luke 22:44).

To the present hour we both hunger and thirst, and we are poorly clothed, and beaten, and homeless. And we labor, working with our own hands. Being reviled, we bless- being persecuted, we endure- being defamed, we entreat. We have been made as the filth of the world, the offscouring of all things until now
(1 Corinthians 4:11-13).

From the Jews five times I received forty stripes minus one. Three times I was beaten with rods- once I was stoned; three times I was shipwrecked; a night and a day I have been in the deep- in journeys often, in perils of waters, in perils of robbers, in perils of my own countrymen, in perils of the Gentiles, in perils in the city, in perils in the wilderness, in perils in the sea, in perils among false brethren- in weariness and toil, in sleeplessness often, in hunger and thirst, in fastings often, in cold and nakedness besides the other things, what comes upon me daily- my deep concern for all the churches
(2 Corinthians 11:24-28).

The Followers of Christ Were Afraid     

This scripture is found in Isaiah-
Come, My people, enter your chambers, and shut your doors behind you- hide yourself, as it were, for a little moment, until the indignation is past
(Isaiah 26:20).

It appears a fulfillment of this prophesy can be found in the Bible Book of John

Mary Magdalene came and told the disciples that she had seen the Lord, and that He had spoken...to her. Then, the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled, for fear of the Jews, Jesus came and stood in the middle (of them), and said to them- "Peace be with you." When He had said this, He showed them His hands and His side. Then the disciples were glad when they saw the Lord...
(John 20:18-20).