John 6:27
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
2 Corinthians 3:1-3
1
Do we begin again to commend ourselves? or need we, as some others, epistles of commendation to you, or letters of commendation from you?
2
Ye are our epistle written in our hearts, known and read of all men:
3
Forasmuch as ye are manifestly declared to be the epistle of Christ ministered by us, written not with ink, but with the Spirit of the living God; not in tables of stone, but in fleshy tables of the heart.
2 Corinthians 12:12
Truly the signs of an apostle were wrought among you in all patience, in signs, and wonders, and mighty deeds.