If we hire another to paint our houses or to mow our lawns, and we pay him, or we contract out for any other service, are not God's apostles and ministers better than these? They are feeding us spiritual food to ensure our entrance into God's Kingdom.
The principle of supporting the ministers of God's Work is in force in the New Testament church. Paul refers to the Old Testament law as his authority for taking tithes to preach the gospel. This, combined with Jesus' comments, shows a clear, New Testament application of the tithing law.