Prayer of Azarias 1:12

12 To whom thou hast spoken and promised, that thou wouldest multiply their seed as the stars of heaven, and as the sand that lieth upon the seashore.

Prayer of Azarias 1:12 In-Context

10 Yet deliver us not up wholly, for thy name's sake, neither disannul thou thy covenant:
11 And cause not thy mercy to depart from us, for thy beloved Abraham's sake, for thy servant Isaac's sake, and for thy holy Israel's sake;
12 To whom thou hast spoken and promised, that thou wouldest multiply their seed as the stars of heaven, and as the sand that lieth upon the seashore.
13 For we, O Lord, are become less than any nation, and be kept under this day in all the world because of our sins.
14 Neither is there at this time prince, or prophet, or leader, or burnt offering, or sacrifice, or oblation, or incense, or place to sacrifice before thee, and to find mercy.

The Brenton translation of the Septuagint is in the public domain.