David
Psalm 127:2ESV·traditional attribution

It is in vain that you rise up early and go late to rest, eating the bread of anxious toil; for he gives to his beloved sleep.

John Calvin Reformed @genevareformer

PSALM 127 This Psalm shows that the order of society, both political and domestic, is maintained solely by the blessing of God, and not by the policy, diligence, or wisdom of men; and that the procreating of children is his peculiar gift. A Song of Degrees of Solomon. Psalm 127:1-2 1.

Commenting on Psalm 127:1-5

C.H. Spurgeon Reformed Baptist @princeofpreachers

It is vain for you to rise up early, to sit up late, to eat the bread of sorrows. Because the Lord is mainly to be rested in, all carking care is mere vanity and vexation of spirit. We are bound to be diligent, for this the Lord blesses; we ought not to be anxious, for that dishonours the Lord, and can never secure his favour.

Matthew Henry Presbyterian @wholebiblehenry

We are here taught to have a continual regard to the divine Providence in all the concerns of this life. Solomon was cried up for a wise man, and would be apt to lean to his own understanding and forecast, and therefore his father teaches him to look higher, and to take God along with him in his undertakings.

Commenting on Psalm 127:1-5