Just for clarification...
Not everyone who calls them self a Christian understands.... That faith is the knowing and being able by grace to believe, messages we learn from Scripture. Faith has its foundation built upon passages we have come to understand and know.
Faith not about some emotional, undefined feeling, towards God. Like saying Rosary. Or, tithing just to receive blessing. Faith is the knowing of truth accurately. A faith that translates into our ability to trust God according to His Word. Truth that we have understood and accepted.
Consequently, faith comes from hearing the message, and the message
(rhema) is heard through the word about Christ."
Romans 10:17
The 'hearing' here means the comprehension and seeing (understanding) what was revealed in sound teaching.
False teaching = bad faith. = "wood, hay, and stubble."
That is why God deliberately has us go through unpleasant trials, as to test to see if what we have chosen to believe is truly sound doctrine!
God's grace is only granted and applied to what is accurate and true.
In this you greatly rejoice, though now for a little while, if need be, you have been grieved
by various trials, that the genuineness of your faith, being much more precious than gold
that perishes, though it is tested by fire, may be found to praise, honor, and glory at the
revelation of Jesus Christ, whom having not seen you love. Though now you do not see Him,
yet believing, you rejoice with joy inexpressible and full of glory, receiving the goal of your
faith—the salvation of your souls." 1 Peter 6-9
The Lord desires that of all who believe.... No one is spared. All will be tested. Not all who believed are happy in this lifetime for that reason.
grace and peace .........