Albert Barnes' Notes on the Whole Bible - 1 Thessalonians 5:23
And the very God of peace - The God who gives peace or happiness; compare notes, Romans 1:7.Sanctify you - See the notes at John 17:17.Wholly - ὁλοτελεῖς holoteleis. In every part; completely. It is always proper to pray that God would make his people entirely holy. A prayer for perfect sanctification, however, should not be adduced as a proof that it is in fact attained in the present life.Your whole spirit and soul and body - There is an allusion here, doubtless, to the popular opinion in... read more
The Pulpit Commentary - 1 Thessalonians 5:24
Faithful is he that calleth you. Paul knows that he does not beseech God in vain. He who calls you to the Christian faith is faithful to fulfill his promises. God's calling is the commencement of a series which terminates in glorification ( Romans 8:30 ). A similar appeal to the faithfulness of God is elsewhere made by the apostle ( 1 Corinthians 1:9 ; 2 Thessalonians 3:3 ). Who also will do it ; namely, will preserve you blameless unto the coming of the Lord Jesus Christ. read more