Our fellow laborer in the gospel of Christ

1 Thessalonians 3:2
and sent Timothy, our brother and minister of God, and our fellow laborer in the gospel of Christ, to establish you and encourage you concerning your faith

Paul was sending Timothy to help with the establishment of an earlier church. Timothy was fully ready to be send out on God's work, just like Isaiah was when he responded to God's call to send him. Being in the service of God means yielding to His calling which may take us anywhere or anyhow He pleases. There is little room for our own plans. Unless we totally yield to the leading of the Holy Spirit, we may be lost in our own world of playing church.