LXX Deut 11:21

ἵνα μακροημερευσητε, κα αἱ ἡμέραι τῶν υἱῶν ὑμῶν ἐπὶ τῆς γῆς ἧς ὤμοσεν κύριος τοῖς πατράσιν ὑμῶν δοῦναι αὐτοῖς καθὼς αἱ ἡμέραι τοῦ οὐρανοῦ ἐπὶ τῆς γῆς.

so that as long as the heavens are above the earth, your days and those of your children may be multiplied in the land that the LORD swore to give your fathers.