Leviticus 25:4 institutes the land's sabbath rest that the triple harvest is designed to cover, providing the immediate context for this promise.

Leviticus 25:8-11 describes the Jubilee year within which this three-year provision sustains the people, connecting the promise to the broader Jubilee cycle.

Exodus 16:29 provides double bread on the sixth day for Sabbath rest — a pattern mirrored by the sixth year's triple harvest for the land Sabbath.

Deuteronomy 28:8 uses the same phrase 'command the blessing' — directly paralleling God's promise here of a commanded blessing on the sixth year's harvest.

Psalm 133:3 also says 'the LORD has commanded the blessing,' using identical language to describe God's ordained favor, here upon unity.

Exodus 16:5 has a sixth-day double manna to cover the weekly Sabbath, a typological pattern of extra provision before rest that this extends to years.

Genesis 26:12 shows God blessing Isaac with a hundredfold harvest, illustrating the promised blessing for the sixth year.