2 Kings 3:21

The Moabites heard that the three kings came to attack them. All the young and old men who could bear arms were called out and stationed at the border.

1 Kings 20:11

The king of Israel responded: It is said, let not the one who puts on his armor boast like the one who takes it off.

Ephesians 6:14

Stand firm therefore and gird your loins with truth. Put 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
The king of Israel responded: It is said, let not the one who puts on his armor boast like the one who takes it off.
Ephesians 6:14
Stand firm therefore and gird your loins with truth. Put on the breastplate of righteousness.