Verses with the word harness in the Old Testament (5 verses):

1 Kings 20:11
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.

1 Kings 22:34
And a certain man drew a bow at a venture, and smote the king of Israel between the joints of the harness: wherefore he said unto the driver of his chariot, Turn thine hand, and carry me out of the host; for I am wounded.

2 Chronicles 9:24
And they brought every man his present, vessels of silver, and vessels of gold, and raiment, harness, and spices, horses, and mules, a rate year by year.

2 Chronicles 18:33
And a certain man drew a bow at a venture, and smote the king of Israel between the joints of the harness: therefore he said to his chariot man, Turn thine hand, that thou mayest carry me out of the host; for I am wounded.

Jeremiah 46:4
Harness the horses; and get up, ye horsemen, and stand forth with your helmets; furbish the spears, and put on the brigandines.