2 Chronicles 36:21

by the mouth of Jeremiah Cp. Jeremiah 25:11; Jeremiah 29:10.

until the land had enjoyed her sabbaths Cp. Leviticus 25:1-7; Leviticus 26:34-35.

threescore and ten years i.e. two whole generations. It is very unlikely that the Chronicler intended to suggest that the Sabbatical years had been neglected throughout the period (about 490 = 70 × 7 years) during which the kingdom lasted, for he mentions several God-fearing kings (David, Solomon, Jehoshaphat) whose reigns would need to be subtracted from this total, so that the number of violated Sabbatical years would fall considerably below 70.