Why Expository Preaching?
“The Word of God is what Jesus preached (Luke 5:1). It was the message the apostles taught (Acts 4:31 and 6:2). It was the word the Samaritans received (Acts 8:14) as given by the apostles (Acts 8:25). It was the message the Gentiles received as preached by Peter (Acts 11:1). It was the word Paul preached on his first missionary journey (Acts 13:5, 7, 44, 48, 49; 15:35-36). It was the message preached on Paul’s second missionary journey (Acts 16:32; 17:13; 18:11). It was the message Paul preached on his third missionary journey (Acts 19:10). It was the focus of Luke in the Book of Acts in that it spread rapidly and widely (Acts 6:7; 12:24; 19:20). Paul was careful to tell the Corinthians that he spoke the Word as it was given from God, that it had not been adulterated and that it was a manifestation of truth (2 Cor. 2:17; 4:2). Paul acknowledged that it was the source of his preaching (Col. 1:25; 1 Thess. 2:13).”
from John MacArthur, The Mandate of Biblical Inerrancy: Expository Preaching
