The first question of the Westminster Larger Catechism and its answer are, “What is the chief and highest end of man? Man’s chief and highest end is to glorify God, and to fully enjoy him forever.”
God chose his people for his glory: “he chose us before the foundation of the world, that we should be holy and blameless before him. In love he predestined us for adoption as sons through Jesus Christ, according to the purpose of his will, to the praise of his glorious grace …” . Ephesians 1:4-6. God desires for his people to glorify him.
We glorify god by worshipping him and telling of his glorious grace, but there are the people of many nations that have not heard of God’s glorious grace that Jesus secured for those who respond to his gospel in faith. To prepare for that “great multitude, that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands, and crying out with a loud voice, “Salvation belongs to our God who sits on the throne, and to the Lamb” (Revelation 7:9-10) the Church must pray for the nations and send workers to tell them the good news.
Jesus commanded his disciples, who were the Church, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.” (Matthew 28:18-20). That commission is not yet completed. Pray for unreached nations and the workers who must go to them with the gospel.
May God be gracious to us and bless us
and make his face to shine upon us, Selah
that your way may be known on earth,
your saving power among all nations.
Let the peoples praise you, O God;
let all the peoples praise you! (Psalm 67:1-3)