Judges are appointed during the early days to deliver the Israelite from oppression of the enemies. After the generation of Joshua had passed away, the Israelite forgot about how God had helped them to settle into the land of Canaan and they started to worship foreign idols. God was angry with the people so he gave them into the hands of the enemies. When the people repented, God chose a person from among the Israelite to save them from the enemies. The person who conquer the enemies became the judge of Israel.
After the judge die, the Israelite would sin against and worship idols. God would punish them by letting other enemies conquer and oppress them. The Israelite would then repent from their sins of idolatry and turn back to God. The cycle kept on repeating after the death of each judge. There would be peace during the reign of the judge. The Israelite would be faithful and obedient to God again during the reign of the judge. There are some judges that led the entire nation of Israel. There are also a number of judges that led only a few tribes.
The job of the judge is to administer justice. The majority of the judges are military leaders. The biblical judges are different from the judges in the law enforcement system today. They There are 13 judges in the bible including Othniel, Ehud, Shamgar, Barak, Gideon, Abimelech, Tola, Jair, Jephthah, Ibzan, Elon, Abdon, and Samson.
At that time, the Israelite were not united as a nation. Instead, they just kept close to their tribes. In those days, Israel does not have king like other nations so they do what they want. After judges, kings were appointed for Israel. Samuel anointed Saul and David to be kings. Saul was rejected by God because he offer sacrifice at the altar on his own without waiting for the priest Samuel. As a result, David was chosen to replace Saul as the king of Israel.
Judges teach that Christians must not ignore their relationships with God and expect that it is all right to continue in this way. God demands 100% devotion to him. You must completely abide in God and walk in his commandments. When you backslide, your relationship with God will not stay the same but it will also go backward. God may put you in difficult situations to remind you of turning back to him.
This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all. If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth: But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin. If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness. If we say that we have not sinned, we make him a liar, and his word is not in us. (John 1:5-10 KJV)
Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God. (John 3:3 KJV)
And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me. (2 Corinthians 12:9 KJV)
So then faith cometh by hearing, and hearing by the word of God. (Romans 10:17 KJV)
For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord. (Romans 6:23 KJV)
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. (John 3:16 KJV)
I tell you, Nay: but, except ye repent, ye shall all likewise perish. (Luke 13:3 KJV)
Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord. (Acts 3:19 KJV)
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance. (2 Peter 3:9 KJV)
Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. (Acts 2:38 KJV)
And saying, Repent ye: for the kingdom of heaven is at hand. (Matthew 3:12 KJV)