Common misinterpretations treat this verse as a prophecy for contemporary Israel or the church's spiritual conquest, detached from its historical recounting of the exodus in Psalm 78; others literalize 'purchased' as monetary redemption instead of conquest by divine power, or confine 'sanctuary' to the later temple while it broadly denotes the holy land, thus missing the psalm's didactic purpose of warning against forgetting God's mighty acts.
Psalms 78:54
King James Version (1769)
54 And he brought them to the border of his sanctuary, even to this mountain, which his right hand had purchased.
Psalms 78:54 celebrates God's sovereign faithfulness in leading the Israelites to the border of the Promised Land, portrayed as His holy sanctuary and a mountain secured by His mighty right hand, underscoring His power in fulfilling covenant promises amid the nation's history of rebellion detailed in the psalm, reminding believers of divine guidance toward inheritance despite human unfaithfulness.