I think our thoughts always mattered to the Father. The Messiah just explained it so we could understand better.
Genesis 6:5
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.
Psalm 10:4
The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts.
Psalm 94:11
The Lord knoweth the thoughts of man, that they are vanity.
Proverbs 15:26
The thoughts of the wicked are an abomination to the Lord: but the words of the pure are pleasant words.
Isaiah 55:7
Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the Lord, and he will have mercy upon him; and to our God, for he will abundantly pardon.
Jeremiah 6:19
Hear, O earth: behold, I will bring evil upon this people, even the fruit of their thoughts, because they have not hearkened unto my words, nor to my law, but rejected it.