We are never to say we know correct doctrine (pride) rather we should say we know The Truth  - Jesus (humility), for He is the source for our doctrine,  our beliefs. Knowing Him is the goal of our existence (spiritual), not merely knowing sound doctrine (soulish). One comes from the mind  - the other from the heart. One engages the mind alone, the othere engages the heart, first, then the mind. This is always the proper order: the source of all wisdom and knowledge   - then the wisdom and knowledge that comes from Him (holy), not from the flesh or from devils (carnal, profane).