Charles Ellicott Commentary 2 Chronicles 6:21

"And hearken thou to the supplications of thy servant, and of thy people Israel, when they shall pray toward this place: yea, hear thou from thy dwelling-place, even from heaven; and when thou hearest forgive." — 2 Chronicles 6:21 (ASV)

Supplications. — Tahănûnîm, a word chiefly poetic and late, which nowhere appears in Kings, and only here in Chronicles. Kings has the older synonym tĕhinnâh.

Hear thou from thy dwelling place, even from heaven. — Yea thou — thou shalt hear from the place of thy dwelling, from the heavens. For “from,” in both places, Kings has “unto,” an unusual pregnant construction, which is probably original.