"The Protestant Reformed Churches believe that, in obedience to the command of Christ, the King of the church, to preach the blessed gospel to all creatures, baptizing, and teaching them to observe all things which Christ has commanded, it is the explicit duty and sacred privilege of said churches to carry out this calling according to the measure of our God-given ability. 

"We believe that this missionary activity includes the work of church extension and church reformation, as well as the task of carrying out the gospel to the unchurched and heathen.  However, we are convinced that our present duty lies primarily in the field of church extension and church reformation."(Constitution of the Domestic Mission Committee of the Protestant Reformed Churches in America).