David
Psalm 54:3ESV·traditional attribution

For strangers have risen against me; ruthless men seek my life; they do not set God before themselves. Selah

John Calvin Reformed @genevareformer

PSALM 54 David has recorded in this psalm the prayers which he offered up to God when he heard of his having been betrayed by the Ziphites, and was reduced to a situation of extreme danger. It cannot fail to impress us with a high idea of his indomitable faith, thus to find him calling upon the name of God in the immediate prospect of death.

Commenting on Psalm 54:1-7

C.H. Spurgeon Reformed Baptist @princeofpreachers

For strangers are risen up against me. Those who had no cause for ill will had gone against him; persons to whom he could have given no offence, for they were strangers to him. They were aliens to his God also, and should these be allowed to worry and destroy him. A child may well complain to his father when strangers come in to molest him.

Matthew Henry Presbyterian @wholebiblehenry

We may observe here, 1. The great distress that David was now in, which the title gives an account of. The Ziphim came of their own accord, and informed Saul where David was, with a promise to deliver him into his hand.

Commenting on Psalm 54:1-3