The Lord is on my side - Margin, as in Hebrew,” for me.” The Lord is with me. He is my helper. He defends my cause.
I will not fear - I have nothing to be afraid of. God is more mighty than any or all of my foes, and he can deliver me from them all. Compare Psalms 56:4, Psalms 56:9,Psalms 56:11.
What can man do unto me? - Any person; all people. They can do no more than God permits. They cannot destroy me when he means to save me; they cannot defeat his gracious designs toward me. I am safe if God is my Friend. Compare the notes at Romans 8:31.