Strong G1252 διακρίνω diakrinō · to judge/doubt

Romans

1. Romans 4:20
   He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God;
2. Romans 14:23
   And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.