'Joined' in the Bible

The king of Aram flew into a rage over this, so he called in his advisors and asked them, "Will you please tell me which of us has joined the king of Israel?"

He joined Ahab's son Joram in an attack on King Hazael of Aram at Ramoth-gilead, and that's where the Arameans wounded Joram.

When Athaliah heard the royal guard shout, she joined the crowd at the Lord's temple.

For he joined with Yahweh; he didn't depart from following him, but kept his commandments, which Yahweh commanded Moses.

Then the king stood by the pillar, and he {made} a covenant before Yahweh, to go after Yahweh and to keep his commands and his warnings and his statutes, with all of [his] heart and with his all of his soul, to keep the words of this covenant written on this scroll. Then all of the people {joined} in the covenant.