Charles Ellicott Commentary Psalms 81:6

"I removed his shoulder from the burden: His hands were freed from the basket." — Psalms 81:6 (ASV)

Pots. —Deriving from a root to boil, and with allusion to potteries, which, probably, together with the brick-kilns, formed the scene of the forced labour of Israel. The Septuagint and Vulgate have “slaved in the basket,” but the basket, which is represented on Egyptian monuments, is doubtless meant by the burden of the last clause.