That is correct.
It is the actions we take upon hearing it that prove we believe.
Demons know it is true, but won't act on it.
A sort of dead faith, as it were.
I call it demonic believing.
The demons believe Jesus is Lord but they don’t obey Him as their Lord.
They continue to obey Satan.
Believing without obeying is demonic believing.
That’s why it says believe in your heart
and confess with your mouth.
Confessing Jesus as Lord is how we believe and therefore obey the Gospel.
That’s why Paul calls it the obedience of faith.
But now is made manifest, and by the scriptures of the prophets, according to the commandment of the everlasting God, made known to all nations for
the obedience of faith: Romans 16:26
James makes it clear that Abraham was justified by works.
Not the works of the law
Not good works
Not works that earn a wage
The work or action that obedience requires; the obedience of faith.
Was not Abraham our father
justified by works, when he had offered Isaac his son upon the altar? James 2:21
The “work” or action that Abraham did was to obey God to offer his son on the altar.
He received faith when he heard God command him to offer his son Isaac on the altar.
The faith he received from hearing God’s word was “made alive” when he obeyed God to offer his son on the altar.
Otherwise, without the corresponding action of obedience, faith remains dead, (dormant, inactive) and therefore unable to accomplish the divine result of justification.
For as the body without the spirit is dead, so faith without works is dead also. James 2:26
JLB