2 Kings 3:21

And when all the Moabites heard that the kings were come to fight against them, they gathered together, from the youngest that was able to put on harness and so upward, and waited in the borders.

1 Kings 20:11

And the king of Israel answered and said, "Tell him, 'Let not him that putteth on his harness boast himself, as he putteth it off.'"

Ephesians 6:14

Stand, therefore, and your loins gird about with verity, having on the breastplate of righteousness,

Treasury of Scripture Knowledge

Summary

And when all the Moabites heard that the kings were come up to fight against them, they gathered all that were able to put on armour, and upward, and stood in the border.

Bible References

Put on armour

1 Kings 20:11
And the king of Israel answered and said, "Tell him, 'Let not him that putteth on his harness boast himself, as he putteth it off.'"
Ephesians 6:14
Stand, therefore, and your loins gird about with verity, having on the breastplate of righteousness,