Isa 65, 16 On whom a blessing is invoked in the land

(Isa 65, 16) On whom a blessing is invoked in the land

[16] By which he will be blessed on whom a blessing is invoked in the land; He who takes an oath in the land shall swear by the God of truth; For the hardships of the past shall be forgotten, and hidden from my eyes.

(CCC 1063) In the book of the prophet Isaiah, we find the expression "God of truth" (literally "God of the Amen"), that is, the God who is faithful to his promises: "He who blesses himself in the land shall bless himself by the God of truth [amen]" (Isa 65:16). Our Lord often used the word "Amen," sometimes repeated (Cf. Mt 6:2, 5, 16; Jn 5:19), to emphasize the trustworthiness of his teaching, his authority founded on God's truth.