'Triumph' in the Bible

All of the prophets [were] likewise prophesying, saying, "Go up [to] Ramoth-Gilead and triumph, and Yahweh will give it into the hand of the king."

When he came to the king, the king asked him, "Micaiah, shall we go to Ramoth-Gilead to the battle, or shall we refrain?" He said to him, "Go up and triumph, and Yahweh will give [it] into the hand of the king."