Deuteronomy 32:10-12

Deuteronomy 32:10-12

[10] He found  him in a desert  land,  and in the waste  howling  wilderness;  he led him about,  he instructed  him, he kept  him as the apple  of his eye.  [11] As an eagle  stirreth up  her nest,  fluttereth  over her young,  spreadeth abroad  her wings,  taketh  them, beareth  them on her wings:  [12] So the LORD  alone  did lead  him, and there was no strange  god 

What is the context of Deuteronomy 32:10-12?