NET
7 Now, O Lord my God, you have made your servant king in my father David’s place, even though I am only a young man and am inexperienced.
Darby
7 And now, Jehovah my God, thou hast made thy servant king instead of David my father; and I am but a little child: I know not to go out and to come in.
KJV
7 And now, O LORD my God, thou hast made thy servant king instead of David my father: and I [am but] a little child: I know not [how] to go out or come in.