James 2:21-26; Genesis 15 and 22; Joshua 2
Here are a couple of definitions that may help –
“Justification is an act of God’s free grace wherein he pardoneth all our sins, and accepteth us as righteous in his sight, only for the righteousness of Christ imputed to us, and received by faith alone.”
“We confess that faith is the alone instrument of justification: yet it is not alone in the person justified, but is ever accompanied with all other saving graces, And is no dead faith, but works by love.”