Is the submission of one’s will and conduct to an authority. For Christians obedience to God is unconditional and obedience to humans conditional.
As one of the Evangelical Counsels obedience is one of the vows publicly professed by those in religious life. Religious practise obedience in imitation of Christ who was obedient to the will of his Father.

(noun) first of the two main parts of the Christian Bible, which records the history of the Jewish people before the birth of Jesus.