The first seven Ecumenical councils of the Christian.

The basis of the Orthodox creed is the Nicene-Constantinople creed, adopted at the first two Ecumenical councils (325-Nicene and 381-Constantinople)

At the third Ecumenical Council of Ephesus (431), six rules were approved for the protection of the dogma of the incarnation of God (the struggle against heresy), a Woman, the Nestorians claimed, gave birth to a man, not a God. It was only by the inspiration of the Holy spirit that the deity entered into him.

At the Chalcedon Ecumenical Council (451), the Monophysites declared that in Jesus human nature was incarnate divine, and therefore recognized in him only one divine nature.

The fifth Ecumenical-second Council of Constantinople (553) obliged to depict the Son of God in human form, and not in the form of a lamb. The sixth Ecumenical Council (Elvira, 682) established the rule that there should be no objects of veneration or worship on the walls of temples. The seventh Ecumenical – second Nicene (787) approved the rule according to which it was considered necessary to depict sacred persons and events and worship them.

The seven councils are the first two Ecumenical councils (325 – Nicene and 381 – Constantinople) the third Ecumenical Council of Ephesus (431) the Chalcedon Ecumenical Council (451) the Fifth Ecumenical-second Council of Constantinople (553) the Sixth Ecumenical Council (Elvira, 682) the Seventh Ecumenical-second Council of Nicaea (787)