Psalms 3:6

I will not be afraid of ten thousands of the people
David was a man of courage from his youth; the instances of his attacking the lion and the bear, when he kept his father's sheep, his engaging with Goliath, and his military exploits, show it; and though there were now many thousands up in arms against him, and his own son at the head of them; all the tribes of Israel were revolting from him, and he was only attended with a few of his friends, yet he was not dismayed; for that he refers to this insurrection appears by what follows,

that have set [themselves] against me round about;
and this was owing not to himself; but to the Lord's sustaining of him; see ( Psalms 27:1-3 ) ; and such courage and greatness of soul did his antitype the Messiah express, and to a greater degree, when Judas, with his band of soldiers, and the multitude with clubs and staves, entered the garden to apprehend him; and when the prince of this world was marching towards him, and when he was engaged with all the powers of darkness, and when the sorrows of death compassed him about, yet he failed not, nor was he discouraged: and something of this spirit appears in true believers, When they are in the exercise of faith, have the presence of God, and the discoveries of his love; they are then not afraid what man can do unto them; nor are they afraid of devils themselves, but wrestle against them; nor of any nor all their enemies, they having victory over them, given by God through Christ.