The provision for worship in the initial tent of meeting was not done with the law. They were willing heart offerings:
Exodus 35:20 Then the whole Israelite community withdrew from Moses’ presence, 21 and everyone who was willing and whose heart moved them came and brought an offering to the Lord for the work on the tent of meeting, for all its service, and for the sacred garments.
Further, God had provided them with what was needed to supply his request
Exodus 12: The Israelites did as Moses instructed and asked the Egyptians for articles of silver and gold and for clothing. 36 The Lord had made the Egyptians favorably disposed toward the people, and they gave them what they asked for; so they plundered the Egyptians.
Romans 12:1-2 I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect.
Not so, my FRiend. The Mosaic Law was given in Ex. 20 and included the provisions for a tabernacle whose specific and demanding details were not optional. Gifting levels may have been optional, but the demand was there.
But, when the New Covenant came, everything changed. The first agreement (temporary as it was) came at Mt. Sinai. And, it intentionally was full of sound and fury. Judgment, requirement, law was to drive the Jews to ask for mercy. That Mt. is gone.
Heb. 12:
18 For you have not come to a mountain that can be touched and to a blazing fire, and to darkness and gloom and whirlwind, 19 and to the blast of a trumpet and the sound of words which sound was such that those who heard begged that no further word be spoken to them. 20 For they could not bear the command, “If even a beast touches the mountain, it will be stoned.” 21 And so terrible was the sight, that Moses said, “I am full of fear and trembling.”
The New Covenant is out of Mt. Zion, and full of grace (Jer. 31:31ff). It is here to stay...for those called.
Heb. 12:
22 But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to myriads of [h]angels, 23 to the general assembly and church of the firstborn who are enrolled in heaven, and to God, the Judge of all, and to the spirits of the righteous made perfect, 24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood, which speaks better than the blood of Abel.
The Law is gone. Grace has come.
The value of the Law is to convict one of his brokenness, but not to give them life (I Tim. 1:8ff, Gal. 3).