This really depends on how specific you want the phrasing to be, but being 'chosen by the gods' is as old as it gets. Just selecting through my translation of The Epic of Gilgamesh (N.K Sanders), in the 'prologue' the poet describes Gilgamesh thusly:

When the gods created Gilgamesh they gave him a perfect body. Shamash the glorious sun endowed him with beauty, Adad the god of the storm endowed him with courage, the great gods made his beauty perfect, surpassing all others, terrifying like a great wild bull. Two thirds they made him god and one third man.