'Besides' in the Bible

Then Joab returned from following Abner; when he had gathered all the people together, nineteen of David’s servants besides Asahel were missing.

For this reason You are great, O Lord God; for there is none like You, and there is no God besides You, according to all that we have heard with our ears.

Besides, whom should I serve? Should I not serve in the presence of his son? As I have served in your father’s presence, so I will be in your presence.”

“For who is God, besides the Lord?And who is a rock, besides our God?