This was the apostle's common salutation, Romans 1:7. See Poole on "Romans 1:7". 1 Corinthians 1:3; where it is observable, that not the Father only, but the Lord Jesus Christ is invoked, and made the Author of grace, which is the free love of God, and of peace, which signifieth either reconciliation with God upon the free pardon of our sin, or union with men, and brotherly love amongst themselves. The heathens used to begin their epistles with wishing one another health and prosperity; but the apostle hath shown us a more Christian way, and more suited to the faith of Christians, who believe the love and favour of God the greatest and most desirable blessings.
Related Commentaries of 2 Corinthians 1:2
2 Corinthians 1:2
2 Grace be to you and peace from God our Father, and from the Lord Jesus Christ.