Our Father knows more than anyone else that words have great power to affect people's lives. Therefore, those who speak to His People are privileged.

That's why Peter makes this clear:

"If anyone speaks, let him speak as the oracles of God.

If anyone ministers, let him do it as with the ability which God supplies,

that in all things God may be glorified through Jesus Christ," 1 Peter 4'11.

He says speaking, ministering and doing everything else has to be with the ability which God supplies - in Jesus' name and for God's glory. However, there is are at least two warnings:

"So speak and so do as those who will be judged by the law of liberty," James 2'12. 

"My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment, James 3'1.    

When Believers are motivated by the desire to do the will of God their confession will be:

"We speak before God in Christ. But we do all things, beloved, for your edification," 2 Corinthians 12'19.