1 Kings 12:32
And Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like unto the feast that is in Judah, and he offered upon the altar. So did he in Beth–el, sacrificing unto the calves that he had made: and he placed in Beth–el the priests of the high places which he had made.
Cross-reference
Verse 33 repeats and expands on the same event, emphasizing Jeroboam's self-devised month and feast — reinforcing his autonomous worship system.
In 1 Kings 8:2, Solomon's feast is in the seventh month (Ethanim); Jeroboam's feast in the eighth month is a deliberate shift, rejecting God's appointed time.
1 Kings 13:1 immediately follows with a man of God confronting Jeroboam at that very altar — showing God's prophetic response to the idolatrous altar.
1 Kings 8:5 shows Solomon's vast sacrifices at the temple dedication; Jeroboam mimics this at Bethel with illegitimate priests and a different date.
Leviticus 23:34-44 gives the full ordinance for the true Feast of Tabernacles; Jeroboam's version in the eighth month replaces it with a counterfeit.
Numbers 29:12-40 details the required sacrifices for Tabernacles; Jeroboam's feast ignores these divine instructions entirely.
Matthew 15:9 condemns vain worship based on human rules; Jeroboam's man-made feast is exactly that—teaching commandments of men.
Exodus 32:4 describes Aaron's golden calf; Jeroboam later sets up golden calves at Dan and Bethel, repeating the same idolatry.
Exodus 32:5 shows Aaron building an altar and proclaiming a feast for the golden calf — Jeroboam's actions deliberately mirror that original sin at Sinai.
Jeremiah 2:20 condemns Israel for playing the harlot on every high hill — Jeroboam's high places at Bethel are the very idolatry Jeremiah later denounces.
Hosea 2:11 declares God will cause all feast days to cease — the counterfeit feast Jeroboam instituted is among those judged.
Amos 7:13 calls Bethel the king's sanctuary — Jeroboam's altar there became the state-controlled worship center condemned by the prophet.
Amos 8:14 swears by the sin of Samaria and the god of Dan — Jeroboam's calf worship at Dan and Bethel is that very sin.
Amos 7:10-13 shows the later prophetic confrontation at Bethel, the very place of Jeroboam's false worship, confirming its sinfulness.
Ezekiel 43:8 condemns placing unauthorized altars near God's sanctuary; Jeroboam's altar at Bethel similarly defiles true worship.
Psalm 94:20 condemns rulers who frame mischief by statute — Jeroboam's self-made feast law fits the pattern of corrupt authority using religious decrees.