Actually, the new moons are given more detail in Numbers.
Are you suggesting that we are to no longer keep the foremost precept, and the second which is like it?
(CLV) MarK 12: 28-34
28 And, approaching, one of the scribes, hearing them discussing, having perceived that He answered them ideally, inquires of Him, "What is the foremost precept of all? 29 Jesus answered him that "The foremost precept of all is: Hear, Israel! the Lord our God is one Lord." 30 And, You shall be loving the Lord God out of your whole heart, and out of your whole soul, and out of your whole comprehension, and out of your whole strength. This is the foremost precept." 31 And the second is like it: 'You shall be loving your associate as yourself.' Now greater than these is no other precept." 32 And the scribe said to Him, "In truth, Teacher, Thou sayest ideally that He is One, and there is no other more than He." 33 And to be loving Him out of your whole heart, and out of the whole understanding, and out of the whole soul, and out of the whole strength, and to be loving the associate as yourself, is excessively more than all the ascent approaches and the sacrifices." 34 And Jesus, perceiving him, that he answered apprehendingly, said to him, "Not far are you from the kingdom of God.And no one dared to inquire of Him any longer."
Yahshua was quoting the Deuteronomy and Leviticus.
(CLV) DT 6:4
4 Hear, Israel! Yahweh is our Elohim; Yahweh the only One. 5 So you will love Yahweh your Elohim with all your heart and with all your soul and with all your intensity. 6 These words which I am instructing you today will come to be in your heart.
(CLV) LV 19:18
18 You shall not avenge nor shall you be resentful against the sons of your people. You will love your associate as yourself:I am Yahweh.
(CLV) Jn 14:23
Jesus answered and said to him, "If anyone should be loving Me, he will be keeping My word, and My Father will be loving him, and We shall be coming to him and making an abode with him.
(CLV) Jn 14:24
He who is not loving Me, is not keeping My words. And the word which you are hearing is not Mine, but the Father's Who sends Me.