In our human rights based, multi-cultural, individualistic society, most people function with a highly pragmatic view of faith; “if it works for you, that’s great” or “I’ll try anything which might make my life better.” Many churches recognise this view of life and faith and so approach evangelism on this basis. These churches use personal testimony based on transformation towards a better life: “it worked for me, it might work for you.”
In the second of his five points on God’s commandment “you will have no other gods before me” Ebenezer Erskine shows why all people should acknowledge Christ as Saviour, not for individualistic, pragmatic reasons, but because God is there, he has commanded us to acknowledge, worship and obey him alone and supremely because he is the redeemer God:
This commandment of the law, “Thou shalt have no other gods before me,” narrows and extends its obligation on the children of men, in a suitableness to the revelation that he makes of himself. When God reveals himself only by the works of creation and providence, as he doth to the hethen world, then his commandment obliges us to know and acknowledge him as God, Creator and preserver; but when he superadds to this revelation of himself as a reconciled God (I am the Lord thy God), a redeeming God in Christ, then the law superadds a new obligation, namely, to know and acknowledge him as such, and to claim him as the God of salvation, a saving, pitying, pardoning God.