John Gill Commentary Psalms 80:3

"Turn us again, O God; And cause thy face to shine, and we shall be saved." — Psalms 80:3 (ASV)

Turn us again, O God
From our captivity, as the Targum, into our own land; or return us backsliding sinners to yourself by repentance; turn us, and we shall be turned; for the prayer shows it was not in their power, but must be effected by the grace of God; or restore our souls, which have been wandering, and them to their former flourishing and comfortable condition:

and cause your face to shine ;
grant your gracious presence, lift up the light of your countenance; favour with the manifestations of yourself, the enjoyment of you, and communion with you through Christ; indulge us with the discoveries of your love, the joys of salvation, the comforts of the Spirit, and larger measures of grace:

and we shall be saved ;
be in a very happy and comfortable condition; see (Psalms 4:6Psalms 4:7) .