Proverbs 2:17

Who is false to the husband of her early years, and does not keep the agreement of her God in mind:

Jeremiah 3:4

Will you not, from this time, make your prayer to me, crying, My father, you are the friend of my early years?

Proverbs 5:18

Let blessing be on your fountain; have joy in the wife of your early years.

Ezekiel 16:8

Now when I went past you, looking at you, I saw that your time was the time of love; and I put my skirts over you, covering your unclothed body: and I gave you my oath and made an agreement with you, says the Lord, and you became mine.

Ezekiel 16:59-60

For this is what the Lord has said: I will do to you as you have done, you who, putting the oath on one side, have let the agreement be broken.

Malachi 2:14-16

But you say, For what reason? Because the Lord has been a witness between you and the wife of your early years, to whom you have been untrue, though she is your friend and the wife to whom you have given your word.

Treasury of Scripture Knowledge

Summary

Which forsaketh the guide of her youth, and forgetteth the covenant of her God.

Bible References

The guide

Proverbs 5:18
Let blessing be on your fountain; have joy in the wife of your early years.
Jeremiah 3:4
Will you not, from this time, make your prayer to me, crying, My father, you are the friend of my early years?

Forgetteth

Ezekiel 16:8
Now when I went past you, looking at you, I saw that your time was the time of love; and I put my skirts over you, covering your unclothed body: and I gave you my oath and made an agreement with you, says the Lord, and you became mine.
Malachi 2:14
But you say, For what reason? Because the Lord has been a witness between you and the wife of your early years, to whom you have been untrue, though she is your friend and the wife to whom you have given your word.

General references

Exodus 20:14
Do not be false to the married relation.
Leviticus 15:20
And everything on which she has been resting, while she is kept separate, will be unclean, and everything on which she has been seated will be unclean.
Numbers 5:12
Say to the children of Israel, If any man's wife does wrong, sinning against him

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain