"No one can serve two masters" (Mt 6: 24)
Pope Shenouda III
In case each master has a different tendency, one cannot serve both equally, or with the same degree of honesty. One's service will be true from all the heart to the one, and in flattery or hypocrisy to the other.
In case both have the same tendency, anybody can serve them equally. A person can serve God, the church, the community, the state, and knowledge, but cannot serve two opposite or competing masters,