Throughout history, various motives have moved men to sing unto the Lord. Some men sang as a testimony of some specific thing God had done for them (Exodus 15:1; Psalm 126:1-2). Others sang in order to teach truths set forth in the word of God (Colossians 3:16; Psalm 101:1). Some even sang songs that would testify against them in times of disobedience (Deuteronomy 31:19). Though some things have changed throughout history, God’s people still should sing songs of personal testimony like My Jesus, I Love Thee; songs that teach like Holy and Reverend Is the Name; and songs that witness against disobedience like He Was Not Willing.
Words always have associative properties with other words; the word joy is no exception. When considering a definition of joy, many people would assume it is being happy or happiness in general. However, the Bible does not associate joy primarily with being happy. God provided another word to enable the Bible student to define the word joy. In each of the three verses in our passage, the scripture makes reference to joy, either indirectly: rejoiced (Esther 8:15) or directly (Esther 8:16, 17). A careful consideration will identify that joy is associated with the words glad (Esther 8:15) and gladness (Esther 8:16, 17). This connection is consistent throughout the Bible (Psalm 51:8; Psalm 105:43; Isaiah 16:10) and is specifically connected to gladness of heart (Deuteronomy 28:47; 1 Kings 8:66; Esther 5:9).