Is it significant that he was “crucified” instead of dying some other way?
Galatians 3:10-13 – For all who rely on the works of the law are under a curse, as it is written: “Cursed is everyone who does not continue to do everything written in the Book of the Law.” Clearly no one who relies on the law is justified before God, because “the righteous will live by faith.” The law is not based on faith; on the contrary, it says, “The person who does these things will live by them.” Christ redeemed us from the curse of the law by becoming a curse for us, for it is written: “Cursed is everyone who is hung on a pole.”
Deuteronomy 21:23 – you must not leave the body hanging on the pole overnight. Be sure to bury it that same day, because anyone who is hung on a pole is under God’s curse. You must not desecrate the land the Lord your God is giving you as an inheritance.