The process of teaching in a way that improves the mind or character.

An elder in Christianity is a person who is valued for wisdom and holds a position of responsibility in a Christian group. In some Christian traditions (e.g., Eastern Orthodoxy, Roman Catholicism, Anglicanism, Methodism) an elder is a ordained person who usually serves a local church or churches and who has been ordained to a ministry of word, sacrament and order, filling the preaching and pastoral offices. In other Christian traditions (e.g., Presbyterianism, Baptists), an elder may be a lay person charged with serving as an administrator in a local church, or be ordained to such an office, also serving in the preaching (in this case referring to teaching done during church gatherings) and/or pastoral roles.