Recently I did a post called "Amusing Grace" where I discussed the futility of trying to preach about God's grace without unpacking the issue of sin. Grace by definition is unmerited favor and without explaining sin people will never grasp why God's favor is unmerited (ie they don't deserve it) and why they need God's grace. It is the knowledge of our depravity that goes a long way towards making grace truly amazing.
I John 3:4 gives us the biblical definition of sin "Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law". So if sin is the breaking (or transgressing) of God's laws then it follows that you would need to explain God's law to at least some extent in order to bring home the reality of sin and how serious it really is. Also, if repentance is necessary in order to receive salvation then it is God's moral law that brings the realisation of exactly what we need to repent of.
The word "law" is a hot button among many evangelicals and is prone to produce knee jerk comments such as legalism, works righteousness, and old covenant. But are these labels reasonable or are they actually sweeping something crucial under the carpet.
To be continued Monday - Why God's Law Must Thunder from the Pulpit - Part 2
Go On To Part 2