Psalm 118:27 New English Translation

²⁷The Lord is God, and he has delivered us.^[a]
Tie the offering^[b] with ropes
to the horns of the altar.^[c]

Psalm 118:27 tn Heb “and he has given us light.” This may be an elliptical expression, with “his face” being implied as the object (see Num 6:25; Pss 31:16; 67:1; 80:3, 7, 19). In this case, “his face has given us light” = “he has smiled on us,” or “he has shown us his favor.” Another option (the one reflected in the translation) is that “light” here symbolizes divine blessing in the form of deliverance. “Light” is often used as a metaphor for deliverance and the life/blessings it brings. See Pss 37:6; 97:11; 112:4; Isa 49:6; 51:4; Mic 7:8. Some prefer to repoint the preterite form וַיָּאֶר (vayyaʾer, “he made light”) as a jussive וְיָאֵר (v^eyaʾer; “may he make light [for us]”).
Psalm 118:27 tn The Hebrew noun חַג (khag) normally means “festival,” but here it apparently refers metonymically to an offering made at the festival. BDB 291 s.v. חַג 2 interprets the word in this way here, citing as comparable the use of later Hebrew חֲגִיגָה, which can refer to both a festival and a festival offering (see Jastrow 424 s.v. חֲגִיגָה).
Psalm 118:27 tn The second half of v. 27 has been translated and interpreted in a variety of ways. For a survey of major views, see L. C. Allen, Psalms 101-150 (WBC), 122.

New English Translation (NET)