Tithing was aprt of the Law. Jesus said that He did not come to abolish that Law, that it wouldn’t change one tittle.
While we will NOT be judged under the Law, the Law is still there. The OT is not just something to read and yet ignore. Tithing is in the Bible for a reason. Tithing was for the Levites doing Gods work. Your Pastor, your church (hopefully) does Gods work. Tithe to it. Tithe to God.
OK, do you go to Jerusalem 3 times a year? Do you hold your ‘tithes’ every third year as the same law requires? Have you been making the same required offerings as well (brings commanded contributions to about 22%)?
You want to follow the Law - then FOLLOW the law to the jot and tittle.