The Old Testament Law and prophecies are fulfilled in and through Jesus, because the role of the Old Testament was to slowly reveal Christ.
So the Ten Commandments (Law) are not wrong, but indicators to fulfilment in Jesus who come to complete them, not change them. This is the heart of Jesus teaching in the Sermon on the Mount, that we should not practice a way of life because God demands it, but because we want to have a relationship with God. And therefore we have to be ourselves and seek to express ourselves not with outward behaviour, but living according to righteousness, truth and the holy desires of our heart.
Jesus sum’s up this pursuit of living whole and holy lives, by summing up the entire Law with the word “LOVE”
a) Love of God
b) Love of neighbour.
Without the freedom that Love brings in our lives, we cannot obey the Law.
As flawed humans, we cannot love and keep the commandments with our own strength. We need the power and grace of the Holy Spirit. It is He who sows the seed of True Love in our hearts and writes the perfect Law of God in our hearts and teaches us to Love and Obey, as Jesus does.
Ezekiel 36:26-27 says, “A new heart I will give you, and a new spirit I will put within you; and I will remove from your body the heart of stone and give you a heart of flesh. I will put my spirit within you, and make you follow my statutes and be careful to observe my ordinances.”
Pray to the Father, Son and Holy Spirit to give us this new heart to Love, as Jesus does.