Charles Spurgeon Commentary 1 Corinthians 1:2-3

"unto the church of God which is at Corinth, [even] them that are sanctified in Christ Jesus, called [to be] saints, with all that call upon the name of our Lord Jesus Christ in every place, their [Lord] and ours: Grace to you and peace from God our Father and the Lord Jesus Christ." — 1 Corinthians 1:2-3 (ASV)

To the church of God which is at Corinth, to those who are sanctified in Christ Jesus, called to be saints, with all who in every place call upon the name of Jesus Christ our Lord, both theirs and ours: Grace to you, and peace, from God our Father, and from the Lord Jesus Christ (1 Corinthians 1:2–3).

A church should be made up of sanctified persons: those who have been set apart in Christ from before the foundation of the world, and those who have been called by the Spirit of God to holiness of life. We sometimes sing, "With them numbered may we be, Now, and through eternity"; but if we are not holy, if we are not truly sanctified, how can we expect to be numbered with the Church of Christ? Where there is no true holiness, there is no work of the Spirit of God.

For all the holy ones Paul desires grace and peace, for they still need these blessings. The holiest of people still have spots about them, and they need grace and peace to be given to them from day to day through Jesus Christ our Lord.