Nahum 1:2 The Lord is a jealous and avenging God; the Lord is avenging and wrathful; the Lord takes vengeance on his adversaries and keeps wrath for his enemies. The Lord is slow to anger and great in power, and the Lord will by no means clear the guilty. His way is in whirlwind and storm, and the clouds are the dust of his feet. He rebukes the sea and makes it dry; he dries up all the rivers; Bashan and Carmel wither; the bloom of Lebanon withers. The mountains quake before him; the hills melt; the earth heaves before him, the world and all who dwell in it.
Exodus 20:5 You shall not bow down to them or serve them, for I the LORD your God am a jealous God, visiting the iniquity of the fathers on the children to the third and the fourth generation of those who hate me,
Deuteronomy 4:24 For the LORD your God is a consuming fire, a jealous God.
Joshua 24:19 But Joshua said to the people, “You are not able to serve the LORD, for he is a holy God. He is a jealous God;
The Bible clearly teaches that God is a jealous God. Exodus 20:5 states, “You shall not bow down to them [other gods] or serve them, for I the LORD your God am a jealous God.” How are we to understand God’s jealousy when the Bible also says that jealousy is a sin (Galatians 5:20)? Isn’t this a contradiction? The key is context. God revealed the Ten Commandments to the people of Israel. He commanded allegiance and worship to Him alone. He would not tolerate the worship of other gods (a practice common in Egypt and other nations). God was “jealous” in the sense that He expected full devotion, not merely a partial, lukewarm commitment. Worship belongs to God, and He is right to be “jealous” of it. Yes, God is a jealous God. Why? Because He will not share His praise with another: “I am the LORD; that is my name; my glory I give to no other, nor my praise to carved idols” . God carefully maintains and protects what is rightly His. This is divine jealousy, and it is worlds apart from the type of sinful jealousy that causes people to envy, suspect, and resent others.
When God was going to describe Himself, on one occasion He called Himself, “Jealous.” This denotes something of God’s nature. In other translations the word ‘zealous’ is used – these words have the same root, and show God’s character in vigilantly guarding that which is His. God breathed the breath of life into the first man. He breathed this life into every person. God jealously yearns for – desires – this spirit in us. “Or do you think that the Scripture says in vain, ‘The Spirit who dwells in us yearns jealously’?” God does not want our spirits to be consumed by this world or by the god of this world, who is the devil. God wants a relationship with our human spirit. However, the god of this world, the devil, is active as well. He also wants to get a hold of our human spirit, to influence us to do his will. He has come to destroy us, and he speaks to our “flesh.” “The flesh Sin is anything that goes against God’s will and His laws. To commit sin is to transgress or disobey these laws. The lust to sin dwells in human nature. In other words, it is contaminated and motivated by want/lust for the worldly and fleshly. It is in this battle God is a jealous God. He is zealous (jealous) for our spirits. He wants us to be zealous, with “God’s zeal” in this battle. God is “jealous” in the sense that He expected full devotion, not merely a partial, lukewarm commitment. He wants all of our hearts, minds, soul, and strength given to honor, glorify, praise, worship, follow, obey, trust, and rely on Him. He is jealous for us to know and serve Him fully. He is jealous for us to know and experience His precious promises, purpose, grace, mercy, and love. If we are to be fully devoted and surrendered to Him we can not share any part of our lives seeking after that which is worldly and fleshly, nor can we be lukewarm, complacent, or neglectful.