The resolutions of the Lambeth Conferences have never been regarded as synodical decrees, but their weight has increased with each conference.
The emperor Marcian approved the doctrinal decrees of the council and enjoined silence in regard to theological questions.
He encouraged the cities, and not content with issuing proclamations against private war, formed alliances with the princes in order to enforce his decrees.
When Leo the Isaurian published his decrees against the worship of images in 726, Gregory II.
He was to draw up a written treatise, stating the course he proposed, and defending it by arguments from scripture, the fathers and the decrees of general councils.