But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth. Acts 1:8
The size of a man's soul is likely to determine his success or failure in the rough, competitive world of the twentieth century. And after his conversion to Christ, it will go far to determine his usefulness in the kingdom of God. Undoubtedly there are many genuine Christians who are not doing much for their fellow men nor for the Church into which they were born by the miracle of the Spirit's regeneration. Such as these need to hear the words of Christ,
"You will receive power when the Holy Spirit comes on you" (Acts 1:8).
The only hope for a restricted heart is the mighty inworking of the Spirit. He can enlarge the mansion of the soul; but only He can do it.
by A.W. Tozer