The average believer would never consider the word joy to be an appropriate descriptive term for temptations. There is a great explanation for this as the average believer experiences little to no victory when tempted. Temptations put a man’s faith on trial. When his faith stands the test, he learns patience. Therefore, he sees temptation as a means by which he can grow in the Lord and add virtues such as patience. It is not that he finds joy in the temptation itself, but that God can and will use that temptation to make him "perfect and entire, wanting nothing" (James 1:4). Believers who fight through and obtain victory find joy in knowing that their faith pleases God (Hebrews 11:6).
Discerning the difference between the workings of God and the mischief of Satan sometimes serves as a difficult task for believers. Although the Devil is called the tempter in Matthew 4:3 and 1 Thessalonians 3:5, the Bible also shows that God uses temptation to try a man (Genesis 22:1). Other than the association to instigating temptation, God and Satan have no other common ground in this matter. The Devil’s motive and method of temptation is simply wicked. On the other hand, the Lord tempts only for the sake of trying one’s faith to bring about a righteous outcome. Do not discount the fact that God never tempted anyone with evil (James 1:13).
The Bible never directly addresses the Lord Jesus as “the Comforter,” yet the Lord alluded to this title. The Lord told His followers that the coming of the Holy Ghost would be God’s means of sending them “another Comforter” (John 14:16). Evidently, the Lord Jesus served as the Comforter and the Holy Ghost would function as another Comforter. During His earthly ministry, the Lord Jesus worked in the lives of those who followed Him. He was their Comforter. When He went to the Father, the Father sent “another Comforter” and He is the Holy Ghost. Each person who is born again by the grace of God has the Holy Ghost dwelling within (Romans 8:9). When troubles come, and they will, the believer has within himself a person of the Godhead that specializes in comforting those afflicted.