God is entering into an explicit, open covenant relationship with an entire nation, and He will ratify His promises to them in this covenant. God’s purpose was for Israel to be a peculiar treasure, a kingdom of priests, and a holy nation (Exodus 19:5,6). As believers we belong to Him, purchased by the blood of Jesus Christ. As He is Holy, He calls us to be a holy nation, set apart and devoted to Him. 1 peter 2:9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvelous light;
