Proverbs 3:5 Trust in the Lord with all thine heart; and lean not unto thine own understanding.
That means, herbs and fruits shall be food for ever, because His Word endureth for ever, nothing can be added unto the Word.
Malachi 3:6 For I am the Lord, I change not; therefore ye sons of Jacob are not consumed.
Psalm 119:89 For ever, O Lord, thy word is settled in heaven.
Mathew 24:35 Heaven and earth shall pass away, but my words shall not pass away.
Baruch 4:1 This is the book of the commandments of God, and the law that endureth for ever: all they that keep it shall come to life; but such as leave it shall die.
Matthew 5:18 For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
Psalm 119:152 Concerning thy testimonies, I have known of old that thou hast founded them for ever.
160 Thy word is true from the beginning: and every one of thy righteous judgments endureth for ever.
Ecclesiastes 3:14 I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor any thing taken from it: and God doeth it, that men should fear before him.
Proverbs 6:16 These six things doth the Lord hate: yea, seven are an abomination unto him:
17 A proud look, a lying tongue, and hands that shed innocent blood,
-The LORD cannot be pleased by something He hates. If He was pleased with Abel's sacrifice it means Abel didn't blood sacrificed an animal.
God cannot change His Word, so whatever you think happend after the flood, I can assure you, that according to Scripture, it wasn't God changing His Mind on the Word He had given to Adam.. It is impossible for a Perfect God to change His Word, or to add unto it.
Ecclesiastes 3:14 I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor any thing taken from it: and God doeth it, that men should fear before him.