When men follow after vanity, they themselves become vain. An individual must make a conscious decision to turn from walking after the Lord to pursue vanity (Jeremiah 2:5). Those who follow after vanity are void of understanding (Proverbs 12:11) and end up in poverty (Proverbs 28:19), sometimes both spiritually and physically. David expressed his concern in this area when he said, “I have not sat with vain persons” (Psalm 26:4). He knew the danger of following vanity and declared that he refused even to sit with vain persons. In Psalm 119:37, the penman pleaded with the Lord for help in turning away his eyes from beholding vanity. God desires and wills for the saints of God to cease from following after vanity.
The Bible provides several sources of man’s joy, but each source can in some way be directly traced back to the Lord. In today's passage, Psalm 43:4 describes God as the psalmist's “exceeding joy.” According to Psalm 16:11, there is “fulness of joy” in God’s presence. While the Bible indicates that man’s soul can be joyful in the Lord (Psalm 35:9; Isaiah 61:10), it also associates joy directly to God’s strength (Psalm 21:1). Moreover, God’s word provides a source of joy for the saint (Jeremiah 15:16). In the New Testament, the book of Romans identifies God as the saint’s source of joy, but specifically, this joy comes “through our Lord Jesus Christ” (Romans 5:11). Perhaps men lack the joy of the Lord because they disregard the Lord of their joy.