Hosea 2:1

The Prophet having spoken of the people’s restoration, and promised that God would some time receive into favour those whom he had before rejected, now exhorts the faithful mutually to stir up one another to receive this favour. He had previously mentioned a public proclamation; for it is not in the power of men to make themselves the children of God, but God himself freely adopts them. But now the mutual exhortation of which the Prophet speaks follows the proclamation; for God at the same time invites us to himself. After we are taught in common, it remains then that each one should extend his hand to his brethren, that we may thus with one consent be brought together to the Lord.

This then is what the Prophet means by saying, Say ye to your brethren, עמי omi, and to your sisters רוחמה ruchamah; that is, since I have promised to be propitious to you, you can now safely testify this to one another. We then see that this discourse is addressed to each of the faithful, that they may mutually confirm themselves in the faith, after the Lord shall offer them favour and reconciliation. Let us now proceed —