But thou, O Lord, shalt laugh at them - That is, God will hear them, and will have all their efforts in derision, or will treat them with contempt. See Psalms 2:4, note; Psalms 37:13, note.
Thou shalt have all the heathen in derision - All those referred to in this psalm - the enemies of David - who have the character, and who manifest the spirit of the pagan; that is, of those who are not actuated by true religion. See the notes at Psalms 59:5. This verse expresses the strong conviction of David, that all the efforts of his enemies would be vain; that God “would be” his Protector; and that he would save him from their evil designs.