When we pray “Hallowed be Your name, Your kingdom come” we are praying for Missions. The full answer to the second request accomplishes the first, and if we pray the first from the depths of hearts which are passionately jealous for God’s name we will be urgent in praying for His kingdom to come.
Every Christian must be praying for Missions for otherwise they show no jealousy for God’s name. Every local church should consider praying for the gospel’s effect worldwide as at the very core of its ministry. God is worthy to be known and glorified by people throughout the world – that involves proclaiming Him and praying for those who are especially equipped to proclaim Him.