'Firmly' in the Bible

if, indeed, you are still firmly holding to faith as your foundation, without ever shifting from your hope that rests on the Good News that you have heard, which has been proclaimed in the whole creation under Heaven, and in which I Paul have been appointed to serve.

having the roots of your being firmly planted in Him, and continually building yourselves up in Him, and always being increasingly confirmed in the faith as you were taught it, and abounding in it with thanksgiving.