Predestination, our callings, gifts, levels of prayers, etc..are by grace. I function and increase in them because of faith. Faith is what pleases God and without it, its impossible to please God.(Heb11:6).

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So, since its faith that pleases God, a man without faith cannot please God even when grace has been made available for all. Only when I walk by faith can I become pleasing to God since God is Himself Grace! Grace is a sure deal thing. I know everything about my life, destiny is by grace. But I have realised that it has been faith that has made this grace walk easy!

Blessings:

In my opinion, even the heroes of faith (Heb11) are talked about not because of grace, but because they applied faith and had victories , children, protection, deliverance which things grace makes them available daily. But it takes my faith( reliance, trust, confidence in God and his word) to daily walk in their realities.

In conclusion, faith has been the most powerful ingredient in my christian walk.