Passage cross-references.

Whose ways are crooked, and they froward in their paths:

And God saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually. …

And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth.

What is man, that he should be clean? and he which is born of a woman, that he should be righteous? …

The LORD looked down from heaven upon the children of men, to see if there were any that did understand, and seek God. …

The thoughts of the wicked are an abomination to the LORD: but the words of the pure are pleasant words.

There is a generation that are pure in their own eyes, and yet is not washed from their filthiness.

Lo, this only have I found, that God hath made man upright; but they have sought out many inventions.

This is an evil among all things that are done under the sun, that there is one event unto all: yea, also the heart of the sons of men is full of evil, and madness is in their heart while they live, and after that they go to the dead.

Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.

Blessed are the pure in heart: for they shall see God.

Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.

And put no difference between us and them, purifying their hearts by faith.

For ye are yet carnal: for whereas there is among you envying, and strife, and divisions, are ye not carnal, and walk as men?

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: …

Unto the pure all things are pure: but unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.

For we ourselves also were sometimes foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, and hating one another.

Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;

Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently: …

If ye know that he is righteous, ye know that every one that doeth righteousness is born of him.

And every man that hath this hope in him purifieth himself, even as he is pure.

Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works.