That's because those religions are for those who are still living in the flesh. Jesus died once in the flesh to the Written Law and He rose from the dead by the holy Spirit. Paul lists the fruits of the holy Spirit in Galatians 5:22-23. If someone is bearing this fruit in their life then it is because they are filled with the holy Spirit and they did not do this on their own. It was Christ in them doing the work. I guess you could say that the Law is to obey Acts 2:38 which would result in fruitfulness for those who are faithful.
Matthew 22:36-40
36 “Teacher, which is the greatest commandment in the Law?”
37 Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’
38 This is the first and greatest commandment.
39 And the second is like it: ‘Love your neighbor as yourself.’
40 All the Law and the Prophets hang on these two commandments.”
1 John
4:8 He that loveth not knoweth not God; for God is love.
Romans
13:10 Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
Neighbors are described in the woman at the well and the good samaritan. Everyone is our neighbor.
1 Corinthians
13:1 Though I speak with the tongues of men and of angels, and have not
love, I am become as sounding brass, or a tinkling cymbal.
13:2 And though I have the gift of prophecy, and understand all
mysteries, and all knowledge; and though I have all faith, so that I
could remove mountains, and have not love, I am nothing.
13:3 And though I bestow all my goods to feed the poor, and though I
give my body to be burned, and have not love, it profiteth me
nothing.