Pray for those who are lost and yet to be harvested. Pray acknowledging that God desires that no one perish. (2 Pt. 3:9 and Jn. 3:16)
Pray that we would be great commission believers, engaging and winning the lost to Christ in each of the geographical locations identified by Jesus. (Mt. 28:18-20 and Acts 1:8)
Pray to the Lord of the harvest to send out laborers into the field. (Mt. 9:38)
Pray that God would make Himself known to the lost in a manner that they would be able to comprehend His love in a personal way to them that draws them unto salvation. He is able. (Eph. 3:20-21)