Tobit 12:18LXX

16And when they had heard these things, they were troubled, and being seized with fear they fell upon the ground on their face.

17And the angel said to them: Peace be to you, fear not.

18For when I was with you, I was there by the will of God: bless ye him, and sing praises to him.

19I seemed indeed to eat and to drink with you: but I use an invisible meat and drink, which cannot be seen by men.

20It is time therefore that I return to him that sent me: but bless ye God, and publish all his wonderful works.