Take Heed What Ye Hear ~ Mark 4:24 KJV
"They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us." -I John 2:19 [KJV] How solemn! How awful! These antichrists came out of the apostolical church of Jesus. They had been in it. Their names had been registered in their church book. They had been church members with the best of saints. Yet all this did not preserve them from the foulest apostasy. They had heard and professed to have received and believed the very same doctrine the Apostles preached! Yet this did not keep them steadfast in the faith. They were carried away with lust and lasciviousness. This led them to corrupt the doctrine of God’s free grace: to suit it to encourage their own corrupt affections, and from hence to proceed to set forth such a different "christ," such a different gospel, and such a different spirit as eclipsed the whole glory of that...