Exodus 23:25-27

"And ye shall serve Jehovah your God, and he will bless thy bread, and thy water; and I will take sickness away from the midst of thee. There shall none cast her young, nor be barren, in thy land: and the number of thy days I will fulfil. I will send my terror before thee, and will discomfit all the people to whom thou shalt come, and I will make all thine enemies turn their backs unto thee."

In essence, these verses promise Israel health, happiness, and length of life, but it should be noted that all of these blessings were made to be contingent absolutely upon their obedience to the words of the Angel of the Covenant who would, through Moses, declare unto them the words of God. Any interpretation of God's promises to Israel are grossly in error if they fail to recognize the fact of every one of those promises having been given conditionally, the condition being that Israel would keep the Covenant and obey the Word of God.

"I will send my terror before thee ..." This dreadful fear of God was most effective in bringing Israel into Canaan. It is seen in the case of Balak and the Moabites. "Moab was sore afraid of the people, because they were many" (Numbers 22:3), and again in the instance of Rahab the harlot who confessed that, "The fear of you has fallen upon all of us" (Joshua 2:9,11).