Wise people heed their consciences and learn from their own experiences, and from these, they seek to interpret good rules for their lives. Even wiser are those who consider the experiences, ideas and teachings of others as well. But the wisest people of all are those who obey the words of God’s prophets. According to Islam, Jesus is one of God’s prophets. And His rules for life are true for everyone.
The Qur’an teaches that certain things that were forbidden before would now be permitted. Jesus would settle the arguments people had about certain behavior. To prove his teaching was from God, Jesus performed many miracles. They were signs that his message was true. Jesus urged people to fear and worship God and to obey Jesus’ teachings. (Sura 3:49b-51; 43:63-64)
The Bible, which is my authority in matters of faith, agrees that Jesus confirmed God’s law. Jesus said:
“Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them.” (Matthew 5:17)
The Bible agrees that Jesus permitted things that were once forbidden. Religious people often consider certain foods clean and lawful to eat, but they believe other foods are unclean and unlawful to eat. Jesus relaxed such laws. Jesus said:
"Don't you see that nothing that enters a man from the outside can make him 'unclean'? For it doesn't go into his heart but into his stomach, and then out of his body." (In saying this, Jesus declared all foods "clean.")" (Mark 7:18b-19)
Religious people often have very exact laws about fasting. When people complained that Jesus’ disciples ate during the times when people were supposed to fast, Jesus answered:
"How can the guests of the bridegroom fast while he is with them? They cannot, so long as they have him with them. But the time will come when the bridegroom will be taken from them, and on that day they will fast." (Mark 2:19-20)
In this way Jesus suspended the laws about fasting for those who were with Him.
Religious people often celebrate special holy days. The Jewish people called the last day of each week their Sabbath. It was a holy day and no one was to work on the Sabbath. When Jesus healed people on the Sabbath, they accused Him of breaking God’s law by working. Once Jesus healed a crippled woman on the Sabbath.
"Indignant because Jesus had healed on the Sabbath, the synagogue ruler said to the people, "There are six days for work. So come and be healed on those days, not on the Sabbath." The Lord answered him, "You hypocrites! Doesn't each of you on the Sabbath untie his ox or donkey from the stall and lead it out to give it water? Then should not this woman, a daughter of Abraham, whom Satan has kept bound for eighteen long years, be set free on the Sabbath day from what bound her?" (Luke 13:14-16)
Thus Jesus declared that it is right to do good to others on the Sabbath.
In many religions, certain places are considered sacred. Several times every year, Jewish people were required to offer sacrifices and worship at the temple in Jerusalem. The Samaritan people, who only accepted the first five books of the Bible as God’s Word, believed they should worship God on the mountain where Moses worshipped instead of going to the temple.
Once, a Samaritan woman challenged Jesus about which place was the correct one to go to for worship. Jesus solved this argument between Samaritans and Jews by saying:
"…true worshipers will worship the Father in spirit and truth…God is spirit, and his worshipers must worship in spirit and in truth." (John 4:23b-24)
In other words, true worship is not done because you are in a temple or on a mountain. True worship is spiritual without pretense and can be done anywhere.
Jesus confirmed God’s laws, but freed people from the rules of clean and unclean foods. He freed people from rules about fasting and rules about holy days and holy places. He taught that true worship is not obedience to outward customs and ceremonies at specific places. True worship is spiritual. It comes from the heart.
(Most of the above information is from "Jesus Gives Peace: Jesus In The Qur'an and the Bible," written by Yusuf Abdallah)