Verses with the word consent in the Old Testament (11 verses):

Genesis 34:15
But in this will we consent unto you: If ye will be as we be, that every male of you be circumcised;

Genesis 34:22
Only herein will the men consent unto us for to dwell with us, to be one people, if every male among us be circumcised, as they are circumcised.

Genesis 34:23
Shall not their cattle and their substance and every beast of their's be our's? only let us consent unto them, and they will dwell with us.

Deuteronomy 13:8
Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him:

Judges 11:17
Then Israel sent messengers unto the king of Edom, saying, Let me, I pray thee, pass through thy land: but the king of Edom would not hearken thereto. And in like manner they sent unto the king of Moab: but he would not consent: and Israel abode in Kadesh.

1 Samuel 11:7
And he took a yoke of oxen, and hewed them in pieces, and sent them throughout all the coasts of Israel by the hands of messengers, saying, Whosoever cometh not forth after Saul and after Samuel, so shall it be done unto his oxen. And the fear of the LORD fell on the people, and they came out with one consent.

1 Kings 20:8
And all the elders and all the people said unto him, Hearken not unto him, nor consent.

Psalms 83:5
For they have consulted together with one consent: they are confederate against thee:

Proverbs 1:10
My son, if sinners entice thee, consent thou not.

Hosea 6:9
And as troops of robbers wait for a man, so the company of priests murder in the way by consent: for they commit lewdness.

Zephaniah 3:9
For then will I turn to the people a pure language, that they may all call upon the name of the LORD, to serve him with one consent.