'Gird' in the Bible

Then he said to Gehazi, "Gird up your loins and take my staff in your hand and go. If you meet anyone, you must not greet them; if anyone greets you, you must not answer them. You must put my staff on the face of the boy."

Now Elisha the prophet called for one of the sons of the prophets, and he said to him, "Gird your loins, and take this flask of olive oil in your hand, and go to Ramoth-Gilead.