Numbers 24:13
If Balak would give me his house full of silver and gold, I cannot go beyond the commandment of the Lord, to do either good or bad of mine own mind; but what the Lord saith, that will I speak?
Cross-reference
Numbers 22:18 contains the identical declaration — Balaam told Balak's messengers he cannot go beyond God's word even for riches.
Numbers 22:20 is God's command for Balaam to speak only His word — the foundation for Balaam's refusal here.
Numbers 22:38 has Balaam telling Balak he can only speak God's word — mirroring his statement here.
Numbers 23:12 shows Balaam's earlier response that he must speak only what God gives — consistent with his claim here.
Numbers 23:26 is Balaam's previous reminder to Balak that he must do only the Lord's word — reiterated here.
Numbers 16:28 has Moses asserting his actions are not of his own will — paralleling Balaam's claim here of divine constraint.
In 1 Kings 13:8, the man of God similarly refuses reward, echoing Balaam's 'I cannot go beyond the Lord's command.'
In 1 Kings 22:14, Micaiah declares he will speak only what the Lord says, directly paralleling Balaam's commitment.
In 2 Chronicles 18:13, Micaiah repeats the pledge to speak only God's word, identical to Balaam's statement.