And whatever you do in word or deed, do all in the name of the Lord Jesus, giving thanks to God the Father through Him. (Colossians 3:17, NKJV)
To do something “in the name of” the Lord Jesus means to do it by His power, authority and approval (see Acts 4:7). Why must we have Christ’s approval for all we say and do? One reason is because “the way of man is not in himself; It is not in man who walks to direct his own steps” (Jer. 10:23). We must have God’s direction in our lives, and the word of Christ supplies us with His moral, spiritual and doctrinal direction. Let His word richly dwell in your heart (Col. 3:15). It is His teaching, not our opinions, consciences, and human logic that marks out the right way to God. Another reason why all we say and do must be with Christ’s authority is because God’s thoughts and ways are far higher than ours (Isa. 55:8-9). We cannot rely on ourselves for salvation, and for how to live in fellowship with the Father. Christ, through His word, provides us the way, the truth and the life we must have in order to go to the Father now, and to live with Him forevermore. Jesus is “the Way” to the Father (Jno. 14:6).