The Doctrines of Grace do not deny man's responsibility. They deny his ability.In The Light said:When the LORD God says, "Get yourself a new heart" and "repent" that is not unilateral activity. That is a call to action. I see no other way to interpret that as man having at least a wee bit of responsibility in the matter.
There seem to be four possible responses to God's word in Ezekiel and elsewhere.
1. The Natural Approach (cf. 1Cor 2:14). This is either to be utterly bewildered by the whole thing as in John 3:4, 9 & 6:52, 60, 66 or to take it in a crudely literal way like the Church of Rome which gives the New Birth by baptism and eats our Lord's body every Lord's Day in the Mass.
2. The Pharisaic Approach (cf. Rom 10:3). This is to decide that you will spruce up your old heart until it's as good as new and be born again by your own efforts.
3. The Semi-Pelagian Approach (cf. Luke 9:57). This is to realise that you can't do the whole thing yourself, but to think that if you say a little sinner's prayer or raise your hand at a meeting and give your heart to Jesus, He will polish it up for you just like new.
4. The Tax Collector's Approach (Luke 18:13). This is to realise that your heart is deceitful above all things and desperately wicked, and that there's no way in the world that you can get yourself a new one. To understand that your most righteous acts are like filthy rags and that God would be perfectly just in sending you to hell this very moment. Then to cast yourself upon God's mercy relying upon nothing but His promise to save those who come to Him through the shed blood of Christ Jesus.
This last approach is only possible for those whose hearts God has already softened to receive His word (Matt 11:25; Luke 1:79; John 6:44; Acts 13:48 etc).
Steve