Without considering both testaments, neither can be fully understood in the manner in which God intends them to be understood.
The Mosaic Law is best understood when it is divided into: (1) the moral law, (2) the civil law, and (3) the ceremonial law.
The following is an excerpt from Soldiers in Training by Brother Daryl Coats.
The following is a quote from p42 of Winsome Christianity by Henry Durbanville: