You mean the "law of Moses," of which Jesus, the revolutionary pretender to the kingdom of Israel, vowed to change "not a jot or a tittle." The law which that world-class con-man, Saul aka Paul, "freed" himself from by claiming to have had a hallucination.
Christianity has only one fundamental tenet: credo qui absurdam.
Shane Mage
"This cosmos did none of gods or men make, but it always was and is and shall be: an everlasting fire, kindling in measures and going out in measures."
Herakleitos of Ephesos, fr. 30