Q 90: What is the quickening of the new man?

Answer:
It is a sincere joy of heart in God, through Christ, (a) and with love and delight to live according to the will of God in all good works. (b)

(a) Rom.5:1 Therefore being justified by faith, we have peace with God through our Lord Jesus Christ:

Rom.14:17 For the kingdom of God is not meat and drink; but righteousness, and peace, and joy in the Holy Ghost.

Isa.57:15 For thus saith the high and lofty One that inhabiteth eternity, whose name is Holy; I dwell in the high and holy place, with him also that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite ones.

(b) Rom.6:10,11 For in that he died, he died unto sin once: but in that he liveth, he liveth unto God. Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.

Gal.2:20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.