Heb 13:6

“"So that we may boldly say, the Lord is my helper, and I will not fear what man shall do unto me." Again consolation in their trials. ... "For He hath said," and He doth not lie, "I will never leave thee, nor forsake thee. So that we boldly say, The Lord is my Helper, and I will not fear what man shall do unto me." Thou hast the promise from Himself: do not doubt henceforward. He has promised; make no question. But this, "I will never leave thee," he says not concerning money only, but concerning all other things also. "The Lord is my Helper, and I will not fear what man shall do unto me"; with good reason. This then also let us say in all temptations; let us laugh at human things, so long as we have God favorable to us. For as, when He is our enemy, it is no gain, though all men should be our friends, so when He is our friend, though all men together war against us, there is no harm. "I will not fear what man shall do unto me."”

“And what shall we say? The words of Ps. 117 (v. 6): 'The Lord is my helper, I will not be afraid; what can man do to me.' He is a helper inasmuch as He delivers from evil: 'A helper in troubles, which have found us exceedingly' (Ps. 45:2); therefore, I will not fear what man shall do to me, i.e., any carnal adversary: 'Who are you to be afraid of a mortal man?' (Is. 51:12); or the devil who is called a man overcome by a man, as Scipio was called African, because he was defeated in Africa: 'A hostile man has done this' (Mt. 13:28).”