Isaiah 55-57, Psalm 109

The Sovereign Lord declares— he who gathers the exiles of Israel: “I will gather still others to them besides those already gathered.” (Isaiah‬ ‭56:8‬)

This is a little like—

[Jesus says,] “I have other sheep that are not of this sheep pen. I must bring them also. They too will listen to my voice, and there shall be one flock and one shepherd.” (John‬ ‭10:16‬)

I suspect we humans have no idea of the scope of God’s ultimate soul-gathering plans.