Among the Desert Fathers
The Apophthegmata Patrum, in which Theodore appears, is a collection of spiritual teachings and anecdotes gathered from the early Christian ascetics who withdrew into the Egyptian desert to pursue prayer, fasting, and contemplation. Theodore is counted among the named fathers of the Alphabetical Collection, the arrangement of the sayings ordered by the speaker's name.
The tradition records a characteristic exchange in which Theodore asked Abba Pambo, 'Give me a word.' With much difficulty Pambo answered, 'Theodore, go and have pity on all, for through pity one finds freedom of speech before God.' Such exchanges, in which a younger monk requests a single instructive 'word' from an elder, are the typical form of the desert sayings.