1 Thessalonians 5:24 in the World English Bible
He who calls you is faithful, who will also do it.
Context
23 And the very God of peace sanctify you wholly; and I pray God your whole spirit and soul and body be preserved blameless unto the coming of our Lord Jesus Christ.
24 Faithful is he that calleth you, who also will do it.
25 Brethren, pray for us.