Everything in true Christianity is built upon and centers around Christ crucified and risen again.  This is why TRUE Christians cannot and do not differ over how God saves sinners.  It is by His free and sovereign grace in the glorious Person of Christ who is God the Son in sinless human flesh (John 1:14), and it is by the work of redemption He accomplished on Calvary to put away our sins by His own precious blood and establish a righteousness whereby God is just to justify ungodly sinners.  Christ is the ONE way and the ONLY way of salvation in all its glorious aspects.  Not one degree of salvation is left to the sinner’s will, goodness, or power.  It is ALL OF CHRIST AND ALL IN CHRIST.