One cannot achieve a personal relationship directly with God by the performance of Mitzvot anymore, and can only draw close through the saving grace of Jesus. The New Testament (Romans 4:13-16) portrays the commandments as a curse and stumbling block.
King David writes in Psalms
* “the Law of G-d is perfect, restoring the soul.” (Psalm 19:7)
King Solomon said that the main purpose of humanity is to believe in God and keep His commandments, as is stated:
* “The end of the matter, when all is said and done: Be in awe of G-d and keep His commandments, for that is the whole person.” (Ecclesiastes 12:13-14)