1 Enoch 100:5
4 In those days, the angels shall descend into the secret places and gather together all those who brought down sin, and the Most High will arise on that day of judgment to execute great judgment among sinners. 5 And over all the righteous and holy, He will appoint guardians from among the holy angels to guard them as the apple of an eye, until He makes an end of all wickedness and all sin, and though the righteous sleep a long sleep, they have nothing to fear. 6 Then the children of the earth shall see the wise in security, and shall understand all the words of this book, and recognize that their riches shall not be able to save them in the overthrow of their sins.
Matthew 18:10
8 If your hand or your foot causes you to sin, cut it off and throw it away. It is better for you to enter life crippled or lame than to have two hands or two feet and be thrown into eternal fire. 9 And if your eye causes you to sin, tear it out and throw it away. It is better for you to enter into life with one eye than to have two eyes and be thrown into fiery hell. 10 “See that you do not disdain one of these little ones. For I tell you that their angels in heaven always see the face of my Father in heaven. 12 What do you think? If someone owns a hundred sheep and one of them goes astray, will he not leave the ninety-nine on the mountains and go look for the one that went astray? 13 And if he finds it, I tell you the truth, he will rejoice more over it than over the ninety-nine that did not go astray.
Notes and References
"... Another example of cultural echo concerns the angel Raphael, who, in the Tobit story is sent from heaven to protect Tobiah on his journey and to heal Tobit (Tobit 3:16-17; 5:4-5). The motif of angels as guardians protecting individuals also occurs in Psalm 91:11 (compare Exodus 14:19-20), Jubilees, and 1 Enoch 100:5. In an ambiguous reference to angels in Matthew 18:10, Jesus teaches the disciples not to despise “the little ones,” because “their angels in heaven always look upon the face of my heavenly Father.” A less ambiguous reference to angels as protectors occurs in Matthew 26:53, a passage unique to the Matthean passion narrative. Jesus rebukes an unnamed disciple for attacking those arresting him: “Or do you think I am unable to call upon my Father and he will send me at once more than twelve legions of angels? ..."
Skemp, Vincent "Avenues of Intertextuality between Tobit and the New Testament" in Corley, Jeremy (ed.) Intertextual Studies in Ben Sira and Tobit: Essays in Honor of Alexander A. Di Lella (pp. 43-70) Catholic Biblical Association of America, 2005