With a “gutless orthodoxy,” Christians today quickly affirm biblical truth regarding evangelism and mission, but, author Jeremy Walker reminds us, “we cannot pretend that we know and believe the truth about men, souls, heaven, hell, and salvation unless it is making a difference in the way we think, feel, pray, speak, and act.” How do Christians develop this sense of urgency to see lost sinners saved? What motivates our evangelism? We must have the character of the brokenhearted evangelist, the David of Psalm 51, who recognizes the greatness of his own sin, looks to God for forgiveness, then recognizes his undeniable obligation to teach transgressors God’s ways. In an engaging style and with pastoral warmth, Walker urges Christians to exercise their obligation and privilege to teach transgressors God’s ways, providing both spiritual truth and practical guidance for carrying out this necessary gospel duty.