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).
God is love, but that does not mean that everything that people love is of God. Today’s verse warns believers not to love the world or the things that are in the world. God’s people are repeatedly admonished about this because believers are prone to love things and people contrary to the will of God. The Christian’s heroes are generally no different than the world's heroes. We have many Bible examples of men who loved those of whom God disapproved. Samson exemplified this in his love for Delilah (Judges 16:4). Amnon had an unrighteous love for his sister Tamar (2 Samuel 13:1). Solomon failed in this area by loving “many strange women” (1 Kings 11:1). Demas left the ministry because he “loved this present world” (2 Timothy 4:10). Unfortunately, the heart of a believer can be drawn to love things and people displeasing to the Lord. It is always important to consider the object of our love and refuse to make excuses when we know better.
