David said to Achish, "Very well, you will know what your servant can do." Achish said to David, "Very well, I will make you {my bodyguard} for life."

If you will fear Yahweh, and serve him, and listen to his voice, and not be rebellious against {what Yahweh says}, and both you and the king who rules over you will [follow] after Yahweh your God, [all will be well].