'In his first coming the wideness of God's mercy is manifest as his Son dies for the world and offers salvation to any and all who believe. But in his second coming the fury of God's judgement is manifest as his Son - the one and very same Son who died for the nations - now takes up his sword and smites the nations in their ongoing idolatry and rebellion against their creator God. Although God announces the certainty of this coming judgment, he does so in part to persuade rebels to drop their arms and bow to Jesus as their personal Lord and King. What mercy preceded such horrific destruction. How infinitely kind of of God to plan the first coming of Christ rather than to move directly to the substance of the second.'
Bruce A Ware, The Man Christ Jesus, p.136.