Note 17 at Ac 2:32: Peter, under the inspiration of the Holy Ghost, very beautifully explained Old Testament scripture and used it to verify what they had witnessed. This provided an irresistible argument to those who were really seeking the truth, and the results were 3,000 conversions to the belief that Jesus was God and had redeemed mankind by His blood.

We cannot base our witness on experience only, but the Lord doesn't want us to base it on the Word only either. Ac 1:8 commissions us to be witnesses of what the Lord has done for us. In Ac 4:29-30, the disciples prayed that the Lord would speak His word through them with healings, signs, and wonders. Mr 16:20 shows that the Lord works with the true preaching of His Word to confirm it with signs and wonders.

Paul said that his preaching "was not with enticing words of man's wisdom, but in demonstration of the Spirit and of power" (1Co 2:4). He also said, "The kingdom of God is not in word, but in power" (1Co 4:20). The lost world needs to see as well as hear about the power of God to save.