Romans 4:5

4:5 But to the one who does not work, but believes in the one who declares the ungodly righteous, his faith is credited as righteousness.

Romans 5:18-19

5:18 Consequently, just as condemnation for all people came through one transgression, so too through the one righteous act came righteousness leading to life for all people. 5:19 For just as through the disobedience of the one man many were made sinners, so also through the obedience of one man many will be made righteous.

Romans 14:5

14:5 One person regards one day holier than other days, and another regards them all alike. Each must be fully convinced in his own mind.