Hosea 2:1

The first words of this chapter some make the close of the foregoing chapter, and add them to the promises which we have here of the great things God would do for them. When they shall have appointed Christ their head, and centered in him, then let them say to one another, with triumph and exultation (let the prophets say it to them, so the Chaldee - Comfort you, comfort you, my people, is now their commission), "say to them, Ammi, and Ruhamah; call them so again, for they shall no longer lie under the reproach and doom of Lo-ammi and Lo-ruhamah; they shall now be my people again, and shall obtain mercy." God's spiritual Israel, made up of Jews and Gentiles without distinction, shall call one another brethren and sisters, shall own one another for the people of God and beloved of him, and, for that reason, shall embrace one another, and stir up one another both to give thanks for and to walk worthy of this common salvation which they partake of. Or rather, because the following words seem to have a coherence with these, these also are designed for conviction and humiliation. The mother (Hos 2:2) seems to be the same with the brethren and sisters (Hos 2:1), the church of the ten tribes, the body of the people, who were brethren, and in a special manner with the heads and leaders, who were as the mother by whom the rest were brought up and nursed.

— Matthew Henry's Concise Commentary (public domain)