John places jesus ahead of the old testaments

The other Gospels begin with Bethlehem; John begins with ‘the bosom of the Father.’ Luke dates his narrative by Roman emperors and Jewish high-priests; John dates his ‘in the beginning.’ To attempt adequate exposition of these verses in our narrow limits is absurd; we can only note the salient points of this, the profoundest page in the New Testament.

MACLAREN 

For the readers of the Old Testaments, the New Testaments are before Genesis. 

Would that proves that Creation is for the sake of Salvation?