'Agreement' in the Bible

"Because you have said, 'We have made a covenant with death, and with Sheol are we in agreement. When the overflowing scourge passes through, it won't come to us; for we have made lies our refuge, and we have hidden ourselves under falsehood.'"

Your covenant with death shall be annulled, and your agreement with Sheol shall not stand. When the overflowing scourge passes through, then you will be trampled down by it.

At the end of years they shall join themselves together; and the daughter of the king of the south shall come to the king of the north to make an agreement: but she shall not retain the strength of her arm; neither shall he stand, nor his arm; but she shall be given up, and those who brought her, and he who became the father of her, and he who strengthened her in those times.

What agreement has Christ with Belial? Or what portion has a believer with an unbeliever?

What agreement has a temple of God with idols? For you are a temple of the living God. Even as God said, "I will dwell in them, and walk in them; and I will be their God, and they will be my people."