Ok, " how does one know who doesn't twists" when one's teaching or doctrine is clearly what the scriptures says. SOLA SCRIPTURA!
this here is how to spot a doctrine flaw. if the teaching doesn't agree with the principles of Jesus Christ, His "sound instruction" the doctrine is lacking at best. if it totally disagrees with Jesus it is false and destructive. if it tries to omit or remove Jesus authority over the entire world, it is of the enemy. if the doctrine speaks of Grace and Love for the obedience to Jesus the Lord. the doctrine has merit. Jesus is the standard for doctrine. the scripture is really clear or again
2 john 1:9 "Anyone who runs ahead and does not continue in the teaching of Christ does not have God; whoever continues in the teaching has both the Father and the Son."
or Jesus John 14:23-24 "Jesus replied, “Anyone who loves me will obey my teaching. My Father will love them, and we will come to them and make our home with them. Anyone who does not love me will not obey my teaching. These words you hear are not my own; they belong to the Father who sent me."
same things throughout scripture. there is one standard that doctrine must be measured against, Jesus and The eternal Gospel of Gods only Son, who Gave His Life to give us Life. His words are the words