Gnosticism

The term Gnosticism derives from the use of the Greek adjective gnostikos (Greek γνωστικός, meaning “learned, intellectual”).

It was defined by St. Irenaeus (c. AD 185) to describe the school of Valentinus as, “‘legomene gnostike haeresis,’ the heresy called Learned (gnostic).”

These people thought that they possessed some special knowledge.

Modern Heresies
Mormons (1830)
Seventh Day Adventists (1863)
Christian Science (1879)
Jehovah’s Witnesses (1870)

I am obliged to point out that Gnosticism is false, God is both spirit and body, and there are Three Persons in One God.

In Heaven, Our Lord is both spirit and body. At the Last Judgment (Resurrection of the Dead), we will be reunited to our bodies.

When we say things in three’s, some think it repetitious. Wrong. For example, when the priest says, “Domine, non sum dignus… Lord, I am not worthy…”, three times as he looks upon the body of Jesus, he is looking at the Three Persons, because They are always present to One Another. They are the origin of familial love.

I don’t need to cite the Bible or the Catechism. These are, and have been, basic beliefs for 2,000 years. Reread your Nicene Creed. The Apostles Creed is the earlier of the two, most likely a baptismal statement, and has been around since at least the 2nd century (100s).

Though not lifted out of the Bible, it is certainly biblical. The Nicene Creed comes from the Council of Nicea in AD 325.
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Heresies down through the years have forced the Catholic Church to issue doctrinal decrees for what was always believed and upheld from the beginning.