If you have faith as a mustard seed, you can say to this mulberry tree, ‘Be pulled up by the roots and be planted in the sea,’ and it would obey you.” Luke 17:6.
Here, it would seem Jesus is talking about releasing faith, not to God as the object—but (I would suggest) from God as a gift, through us, to an object (in his example, a tree)—comparable to when God said, “Let there be light.” After all, we are made in His image.
Maybe it’s analogous to Jesus statement about casting the mountain into the sea which may have actually been a prophecy about the destruction of Jerusalem. If true then it’s not a comment about our faith but more like “You better believe Jerusalem will be cast into the sea.”
Also Gal 2.20 in context simply sounds like God is faithful even though the Israelites were not.