Acts 15:5
But there rose up certain of the sect of the Pharisees which believed, saying, That it was needful to circumcise them, and to command them to keep the law of Moses.
Acts 15:24Forasmuch as we have heard, that certain which went out from us have troubled you with words, subverting your souls, saying, Ye must be circumcised, and keep the law: to whom we gave no such commandment:
Acts 15:10
Now therefore why tempt ye God, to put a yoke upon the neck of the disciples, which neither our fathers nor we were able to bear?
The written ordinances of the Mosaic laws are called a yoke of bondage by Apostle Paul in Galatians 5:1.
Also in that same passage above in Acts 15:28 it says the Holy Spirit approved of this change of what ordinances still apply, and the Holy Spirit is of God so if He approves then God approves.
Love, mercy, and forgiveness is found in the OT but the Jews, especially that of the Pharisees who were the law givers focused only on the written ordinances and ignored those finer aspects of the law.
Does stoning people to death for breaking a command fall under love, mercy, or forgiveness ???
Does eye for eye, tooth for a tooth still apply ??? Matthew 5:38-39 says no...........
The standards we are told to walk by in the new covenant by the Lord is love, mercy, and forgiveness of all people.
If the spirit that is leading a person is telling them things that do not fall under those categories then it is not the Holy Spirit.
It is not ignoring God given instructions as you think as the Lord made changes from the old covenant to the new covenant, and the standard by which we are to follow in the new covenant is not focusing on written ordinances to obey. There are other scriptures such as Colossians 2:14 that shows those written ordinances were blotted out.