Psalm 84:7 New English Translation

⁷They are sustained as they travel along;^[a]
each one appears^[b] before God in Zion.

Psalm 84:7 tn Heb “they go from strength to strength.” The phrase “from strength to strength” occurs only here in the OT. With a verb of motion, the expression “from [common noun] to [same common noun]” normally suggests movement from one point to another or through successive points (see Num 36:7; 1 Chr 16:20; 17:5; Ps 105:13; Jer 25:32). Ps 84:7 may be emphasizing that the pilgrims move successively from one “place of strength” to another as they travel toward Jerusalem. All along the way they find adequate provisions and renewed energy for the trip.
Psalm 84:7 tn The psalmist returns to the singular (see v. 5a), which he uses in either a representative or distributive (“each one”) sense.

New English Translation (NET)