If the Lord authorizes for service, He also grants the needed power, but only on this ground, that it is held as in Him alone, and by us as in full dependence on Him. The excellency of the power is of God, and not of us. Mark this, it’s not of us.
We may be the channel, yet only then as being in company with the Lord. He has most power who abides most in his Lord’s blest company.
Mighty signs and wonders may not be seen, but he is always a man of spiritual power who walks with the Lord, for with such, communion is the first thing, and service results from that.