Psalm 81:15 New English Translation

¹⁵(May those who hate the Lord^[a] cower in fear^[b] before him.
May they be permanently humiliated.)^[c]

Psalm 81:15 tn “Those who hate the Lord” are also mentioned in 2 Chr 19:2 and Ps 139:21.
Psalm 81:15 tn See Deut 33:29; Ps 66:3 for other uses of the verb כָּחַשׁ (kakhash) in the sense “cower in fear.” In Ps 18:44 the verb seems to carry the nuance “to be weak; to be powerless” (see also Ps 109:24). The prefixed verbal form is taken as a jussive, parallel to the jussive form in the next line.
Psalm 81:15 tc Heb “and may their time be forever.” The Hebrew term עִתָּם (ʿittam, “their time”) must refer here to the “time” of the demise and humiliation of those who hate the Lord. Some propose an emendation to בַּעֲתָתָם (baʿatatam) or בִּעֻתָם (biʿutam; “their terror”; i.e., “may their terror last forever”), but the omission of bet (ב) in the present Hebrew text is difficult to explain, making the proposed emendation unlikely.tn The verb form at the beginning of the line is jussive, indicating that this is a prayer. The translation assumes that v. 15 is a parenthetical “curse” offered by the psalmist. Having heard the reference to Israel’s enemies (v. 14), the psalmist inserts this prayer, reminding the Lord that they are God’s enemies as well.

New English Translation (NET)