Corruption is a state of decay, pollution or incorrectness. In the Bible, corruption is one of the effects of sin that resulted from the fall of man. In the beginning, God created a perfect paradise, free of sickness, pain and death. But when Adam and Eve disobeyed God by eating the forbidden fruit, sin entered the world, spoiling its perfection. That sin also brought contamination and decay to Adam and Eve and to the human nature of every person born after that

[Romans 5:12]

Wherefore, as by one-man sin entered into the world, and death by sin, and so death passed upon all men, for that all have sinned;

Thus, corruption in the Bible is the state of moral contamination and spiritual decay expressed through disobedience toward God.
Corruption is closely related to spiritual death. God told Adam that, if he ate from the tree of the knowledge of good and evil, he would “surely die”
Adam didn’t die a physical death that day but a spiritual one that involved separation from God

Ephesians 2:1–3

2:1 And you hath he quickened, who were dead in trespasses and sins;
2:2 Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience;
2:3 Among whom also we all had our conversation in times past in the lusts of our flesh, fulfilling the desires of the flesh and of the mind; and were by nature the children of wrath, even as others.

By the time of Noah, the corruption of mankind had been amplified:

Genesis 8:17

The earth was corrupt before God; and it was filled with violence. And God looked upon the earth, and behold, it was corrupt, for all flesh had corrupted its way upon the earth.

The Bible teaches that the consequence of sin is death:

Romans 6:23

For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord. Living in a state of moral corruption brings about eternal separation from God:

The power of corruption is broken by the divine power of the gospel of Jesus Christ:

2 peter 1:2-4

1:2 Grace and peace be multiplied unto you through the knowledge of God, and of Jesus our Lord,
1:3 According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue;
1:4 Whereby are given unto us exceeding great and precious promises; that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.

When we come to know Jesus Christ, we embark on a personal relationship with Him. The more that relationship grows, the better we understand who Jesus is and what He’s done for us. We start to grasp what His divine power accomplished for us.

One of Jesus’ promises to us is the empowering and purifying ministry of the Holy Ghost in the life of every believer. The Spirit empowers us to obey God, reversing the curse of corruption and making us partakers of God’s divine nature.

The book of Galatians likens the process of spiritual development in the child of God to sowing and reaping:

Galatians 6:8

6:8 For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting

As the Holy Ghost undoes the effects of corruption and decay, we reap the rewards of eternal life.

One glorious future day, the curse of corruption and decay will be lifted for all eternity:

For all creation is waiting eagerly for that future day when God will reveal who his children really are. Against its will, all creation was subjected to God’s curse. But with eager hope, the creation looks forward to the day when it will join God’s children in glorious freedom from death and decay