'Joined' in the Bible

Abijah joined battle with an army of valiant men of war, even four hundred thousand chosen men: and Jeroboam set the battle in array against him with eight hundred thousand chosen men, who were mighty men of valor.

Now Jehoshaphat had riches and honor in abundance; and he joined affinity with Ahab.

and he joined himself with him to make ships to go to Tarshish; and they made the ships in Ezion Geber.

Then Eliezer the son of Dodavahu of Mareshah prophesied against Jehoshaphat, saying, "Because you have joined yourself with Ahaziah, Yahweh has destroyed your works." The ships were broken, so that they were not able to go to Tarshish.