NET
11 The king of Israel replied, “Tell him the one who puts on his battle gear should not boast like one who is taking it off.”
Darby
11 And the king of Israel answered and said, Tell [him], Let not him that girdeth on boast himself as he that putteth off!
KJV
11 And the king of Israel answered and said, Tell [him], Let not him that girdeth on [his harness] boast himself as he that putteth it off.