'Alliance' in the Bible

After some years they will form an alliance, and the daughter of the king of the South will go to the king of the North to seal the agreement. She will not retain power, and his strength will not endure. She will be given up, together with her entourage, her father, and the one who supported her during those times.

He'll decide to come with the full power of his kingdom, bringing with him an alliance that he'll implement. He'll give him a daughter in marriage to overthrow it, but it won't succeed or work out for him.

After an alliance is made with him, he will act deceitfully. He will rise to power with a small nation.