'Alliance' in the Bible

After some years they will form an alliance, and the daughter of the king of the South will come to the king of the North to carry out a peaceful arrangement. But she will not retain her position of power, nor will he remain with his power, but she will be given up, along with those who brought her in and the one who sired her as well as he who supported her in those times.

After an alliance is made with him he will practice deception, and he will go up and gain power with a small force of people.