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 Book of Numbers is a great book when looking for devotional material. In chapters 1-10 the people seem to be wholly following the commandments of the Lord. However, chapter 11 is the beginning of woes. The very first phrase is "And when the people complained, it displeased the Lord". In chapter 12, we find the murmuring moving up the ranks into the leadership and infecting Miriam and Aaron as they murmur against Moses. In chapter 13, ten of the twelve spies come back with an evil report concerning the land of promise. In chapter 14, we find the people wanting to make a captain to return to Egypt and then wanting to stone Joshua and Caleb for their report of faith. This chapter includes the decision of the Israelites not to go into the land of promise, and then their decision to go into the land of promise after the Lord told them they could no longer go in. The Israelites decide to go against the commandments of the Lord and try to take the land of Canaan on their own, only to be smitten by the Amalekites and Canaanites.
Psalm 107 is an amazing Psalm with an amazing end. The last verse of this Psalm says, "Whoso is wise, and will observe these things, even they shall understand the lovingkindness of the LORD." On the surface, you would expect this Psalm to deal with the sweet times of blessings and gifts from God, but the opposite is true. The chapter gives five examples of troubles or trials in the lives of people. Some experience troubles because of sin and some because the Lord led them into troubles and some just because of everyday life. Two verses are repeated four times each. One of these verses is repeated in verses 6, 13, 19 and 28 and it says, "Then they cried unto the LORD in their trouble, and he delivered them out of their distresses." The other verse is repeated in verses 8, 15, 21, and 31 and it says, "Oh that men would praise the LORD for his goodness, and for his wonderful works to the children of men!" These verses demonstrate not only a purpose for trials in the lives of men and women, but it also builds on the idea of the lovingkindness of the LORD. The lovingkindness of the Lord seems to be connected to His dealings as a Father. He allows or causes trials and troubles in our lives to bring us to a point where we cry out to Him and then He delivers us. When He delivers us, He desires praises from our lips. Through these trials we are drawn closer to Him and are strengthened in faith. This truly is the lovingkindness of the Lord.
Mathematics can be quite complex, yet one of the most basic divisions of mathematics is called arithmetic. You may better grasp what I am talking about when I say that the most basic operations of arithmetic are addition, subtraction, multiplication, and division. A grasp of these basic operations is a necessity for anyone who desires to grasp any of the more complex divisions of mathematics. Interestingly enough, the same things hold true for the Christian life. It can be quite complex, but at the same time we could break it down to the simplicity of addition, subtraction, multiplication, and division.
