Cross reference
1 Samuel 13:1
1 A son of a year `is' Saul in his reigning, yea, two years he hath reigned over Israel,
Exodus 12:5
5 a lamb, a perfect one, a male, a son of a year, let be to you; from the sheep or from the goats ye do take `it'.
Micah 6:6
6 With what do I come before Jehovah? Do I bow to God Most High? Do I come before Him with burnt-offerings? With calves -- sons of a year?