1 Kings 20:11

11 And the king of Israel answered and said, Tell him, Let not him that girdeth on [his armor] boast himself as he that putteth it off.

1 Kings 20:11 Meaning and Commentary

Ver. 11 And the king of Israel answered and said
Very mildly and very wisely:

tell him, let not him that girdeth on his harness boast himself as he
that putteth it off;
that is, he that prepares for the battle as he that has got the victory; the sense is, let no man triumph before the battle is over and the victory won; the events of war are uncertain; the battle is not always to the strong.

1 Kings 20:11 In-Context

9 Wherefore he said unto the messengers of Ben-hadad, Tell my lord the king, All that thou didst send for to thy servant at the first I will do; but this thing I may not do. And the messengers departed, and brought him word again.
10 And Ben-hadad sent unto him, and said, The gods do so unto me, and more also, if the dust of Samaria shall suffice for handfuls for all the people that follow me.
11 And the king of Israel answered and said, Tell him, Let not him that girdeth on [his armor] boast himself as he that putteth it off.
12 And it came to pass, when [Ben-hadad] heard this message, as he was drinking, he and the kings, in the pavilions, that he said unto his servants, Set [yourselves in array]. And they set [themselves in array] against the city.
13 And, behold, a prophet came near unto Ahab king of Israel, and said, Thus saith Jehovah, Hast thou seen all this great multitude? behold, I will deliver it into thy hand this day; and thou shalt know that I am Jehovah.
The American Standard Version is in the public domain.