Laughable as you refuse to identify circumcision of the heart as regeneration in Col 2:11
It is in Christ and to be in Christ one must have faith
Ephesians 1:13 (KJV 1900) — 13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
PS the verse you cite does not mention faith, so it can hardly prove your claim.
However, the context shows they are to return to the lord and obey his voice before that happens
Deuteronomy 30:1–8 (KJV 1900) — 1 And it shall come to pass, when all these things are come upon thee, the blessing and the curse, which I have set before thee, and thou shalt call them to mind among all the nations, whither the LORD thy God hath driven thee, 2 And shalt return unto the LORD thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thine heart, and with all thy soul; 3 That then the LORD thy God will turn thy captivity, and have compassion upon thee, and will return and gather thee from all the nations, whither the LORD thy God hath scattered thee. 4 If any of thine be driven out unto the outmost parts of heaven, from thence will the LORD thy God gather thee, and from thence will he fetch thee: 5 And the LORD thy God will bring thee into the land which thy fathers possessed, and thou shalt possess it; and he will do thee good, and multiply thee above thy fathers. 6 And the LORD thy God will circumcise thine heart, and the heart of thy seed, to love the LORD thy God with all thine heart, and with all thy soul, that thou mayest live. 7 And the LORD thyC God will put all these curses upon thine enemies, and on them that hate thee, which persecuted thee. 8 And thou shalt return and obey the voice of the LORD, and do all his commandments which I command thee this day.
Circumcision of the heart here is sanctification, not regeneration.