But there came a man of God to him, saying, O king, let not the army of Israel go with thee; for the LORD is not {e} with Israel, to wit, with all the children of Ephraim.

(e) Therefore to think to have help from them, whom the Lord does not favour, is to cast off the help of the Lord.

Wesley's Notes

25:7 Let not, and c. - It is comfortable to employ those, who we have reason to hope, have an interest in heaven, but dangerous associating with those from whom the Lord is departed.

Scofield Reference Notes

[1] Ephraim

Used in a collective sense for the northern ten-tribe kingdom, called also "Israel."

Jamieson-Fausset-Brown Bible Commentary

7, 8. there came a man of God-sent to dissuade Amaziah from the course he was following, on the ground that "the Lord is not with Israel." This statement was perfectly intelligible to the king. But the historian, writing long after, thought it might require explanation, and therefore added the comment, "with all the children of Ephraim." Idolatry had long been the prevailing religion in that kingdom, and Ephraim its headquarters. As to the other part of the prophet's advice (2Ch 25:8), considerable obscurity hangs over it, as the text stands; and hence some able critics have suggested the insertion of "not" in the middle clause, so that the verse will be thus: "But if thou wilt go [alone], do, be strong for the battle; God shall not make thee fall before the enemy."

Matthew Henry's Concise Commentary

25:1-13 Amaziah was no enemy to religion, but cool and indifferent friend. Many do what is good, but not with a perfect heart. Rashness makes work for repentance. But Amaziah's obedience to the command of God was to his honour. A firm belief of God's all-sufficiency to bear us out in our duty, and to make up all the loss and damage was sustain in his service, will make his yoke very easy, and his burden very light. When we are called to part with any thing for God and our religion, it should satisfy us, that God is able to give us much more than this. Convinced sinners, who have not true faith, always object to self-denying obedience. They are like Amaziah; they say, But what shall we do for the hundred talents? What shall we do if by keeping the sabbath holy we lose so many good customers? What shall we do without this gain? What shall we do if we lose the friendship of the world? Many endeavour to quiet their consciences by the pretence that forbidden practices are necessary. The answer is, as here, The Lord is able to give thee much more than this. He makes up, even in this world, for all that is given up for his sake.