I don’t think He’s ever explicitly refused to help. What He tends to do with me is more stand back and let me work it out for myself. I won’t get stronger if He does everything for me. So He’ll just step back, and let me work at it myself.
I suspect He takes this approach to my protection magics as well. I invoke Him for protection, but it’s that sense of agency, too, of being able to take care of myself just as well. That I’m not relying on Him alone. And I think that’s why learning protection magic calls to me so strongly. It’s to help myself so I don’t have to just be helplessly relying on Him. I need the confidence to protect myself, to know I will be safe anyway, and to use His presence to back that up. That’s how that’s manifesting in my life, at any rate.