"according to his age"

1. 1 Ne. 18: 6
   6 And it came to pass that on the morrow, after we had prepared all things, much fruits and meat from the wilderness, and honey in abundance, and provisions according to that which the Lord had commanded us, we did go down into the ship, with all our loading and our seeds, and whatsoever thing we had brought with us, every one according to his age; wherefore, we did all go down into the ship, with our wives and our children.
2. Mosiah 10: 9
   9 And it came to pass that I caused that the women and children of my people should be hid in the wilderness; and I also caused that all my old men that could bear arms, and also all my young men that were able to bear arms, should gather themselves together to go to battle against the Lamanites; and I did place them in their ranks, every man according to his age.