Good explanation.
From Blessed Saint John Chrysostom...
it is neither the case that everything is due to help from on high (rather, we too must contribute something), nor on the other hand does He require everything of us, knowing as He does the extraordinary degree of our limitations; on the contrary, out of fidelity to His characteristic love and wishing to find some occasion for demonstrating His own generosity, He awaits the contribution of what we have to offer.-Saint John Chrysostom-Ibid., 53.2 (PG 54 466; tr. Hill, vol. 3, 82-83).
Spot on.