Hosea 9:1-2 – “Do not rejoice, O Israel; do not be jubilant like the other nations. For you have been unfaithful to your God; you love the wages of a prostitute at every threshing floor. Threshing floors and winepresses will not feed the people; the new wine will fail them.”
“Do not rejoice, O Israel…” True rejoicing is appropriate for those who are actually right with God, those who are walking in faithfulness. This is the case in Philippians 4:4, where Paul tells us tells to “Rejoice in the Lord always,” referring to people whose mature Christian character is “evident to all” (Philippians 4:5). In contrast, Hosea 9 (like James 4:8-10) addresses hypocritical believers, backsliders, and religious phonies. They need to repent, to get right with God, to yield completely to Him and start walking in faithfulness and obedience.