The explanation is that God sent different Messengers, Teachers or Prophets to different peoples at different periods of history to help them advance spiritually, socially and materially. They had specific Missions. Christ was mainly about the individual. Muhammad about Community and nation and Baha’u’llah regarding the establishment of world civilisation. So they are both progressive and complimentary. The only difference is with the social laws which were meant for each age. So things like the eating of pork before refrigeration was invented was forbidden due to desert climate and health issues later rescinded by Baha’u’llah.
The needs of each age and peoples are different so each Messenger reveals what is needed at the time. But They all taught the virtues, upright conduct and good behaviour. However, over a period of time, priests added superstitious rituals and dogmas not taught by the Prophets thus changing the original religion. That’s why God continues to send Prophets, Avatars, to renew religion from age to age. It is the religious leaders who have created the conflicts and divisions in religion and between religions as the Prophets all have taught love, unity and virtues but the followers have not always obeyed them. Had Christians obeyed Christ’s commandment to love one another there would only be one Christian religion not the thousands of conflicting sects and disunity which exists today. Same with the other religions.
Makes no sense. First the morals and ethics taught by each"prophet" are standard, same old wisdom and ethics of the time period. Never any new material, new facts about the universe, math science.
Then, Muhammad did not say humans only had to obey the commands and love one another. Islam says humans got it all woring, Christians are telling lies, "sons of a God" is a pagan myth (it actually is) and the writers of the NT were corrupted by Greek ideas.
Jesus doesn't just teach love, he teaches freedom of religion and non-belief in that religion as the ultimate sin. Worthy of no forgiveness and eternal torture.
If you have children and they lacked belief in you would you feel. torture was acceptable? How about eternal torture?
The "messenger" thing is the explanation of the Bahai religion which is prolific at writing but offers no demonstration that God is actually speaking to him. No religion does. They are all likely made up by people. Or is it a big coincidence that the wisdom is always whatever is currently trending at the time in that region?