Now I myself am confident concerning you, my brethren, that you also are full of goodness, filled with all knowledge, able also to admonish one another. (Romans 15:14, NKJV)
An admonition is an earnest warning, a reprimand firmly given. By definition, it is intended to be persuasive, either to correct sin or to urge an action of faithfulness. Paul suggests two things needed in order to effectively admonition others. First, it requires the goodness of moral integrity. Admonitions fall on deaf ears when they come from a person whose own integrity is suspect. We must first remove the beam out of our own eye in order to see clearly to remove the speck from our brother’s eye (Matt. 7:3-5). Secondly, we must be filled with a knowledge of God’s truth in order to give Scriptural warnings. God’s word contains the wisdom and admonitions most needed. When admonishing someone of spiritual danger, do so out of the goodness of love and upon the basis of God’s truth.