Such a book was needed a decade ago when the social justice meme was started by the left and got traction in the drive by culture.
Jesus quoted Deuteromony when asked about the greatest command, love the Lord your God with all your heart, mind and soul, and then Jesus said yo love your neighbor as yourself.
Loving God means following and obeying His word in totality. Do that and loving your neighbor flows from that and is easy.
The first part is from Deuteronomy 6:4-5, and “love thy neighbor as thyself” is from Leviticus 19:18. That would be a perfect answer to the question “What is the greatest commandment in the Torah?”