In Isaiah 28:13, the same phrase becomes God's judgment — the precepts they mock become the trap that ensnares them.

2 Chronicles 36:15 notes God sending prophets again and again — mirroring the persistent 'line upon line' instruction mocked here.

2 Chronicles 36:16 records the people mocking God's messengers — directly parallel to the scoffing at divine instruction here.

Jeremiah 25:3-7 explicitly says God spoke 'again and again' — directly corresponding to the 'precept upon precept' the people mock.

Hebrews 5:12 rebukes those needing to learn basic principles again — directly illustrating the need for precept upon precept.

Deuteronomy 6:1-6 commands repetitive teaching of God's words — the very method the people here scorn as meaningless.

Nehemiah 9:29 describes people rejecting warnings and becoming stiff-necked — similar to the contempt for teaching in this verse.