Psalms 107:21 in the King James Version (KJV) reads, "Oh that men would praise the Lord for his goodness, and for his wonderful works to the children of men!" This verse is a call to praise and give thanks to the Lord for His goodness and wonderful works towards His people. It serves as a reminder to believers to recognize and acknowledge God's benevolence in their lives and to express gratitude for His blessings.

The theme of praise and thanksgiving is a prominent one throughout the book of Psalms, with Psalms 107 specifically focusing on the redemption of the Lord's people from trouble and distress. The psalm begins with a call to give thanks to the Lord, for He is good and His mercy endures forever (Psalm 107:1). The psalmist then proceeds to describe various scenarios in which people have found themselves in desperate situations and have cried out to the Lord for deliverance. In each case, the Lord hears their cries and delivers them, and in response, they are called to praise Him with thanksgiving.

The context of this verse is important to understand. Throughout the psalm, the psalmist describes the ways in which the Lord has delivered His people from various troubles, such as wandering in the wilderness, being prisoners in darkness and chains, and suffering affliction due to their rebellious ways. In each scenario, the Lord hears their cries and delivers them, often through miraculous interventions. This leads to a cycle of distress, crying out to the Lord, and deliverance, which culminates in a call to praise and thank the Lord for His goodness and wonderful works.

The symbolism in this verse lies in the idea of God's goodness and wonderful works. The psalmist is encouraging believers to reflect on the ways in which the Lord has intervened in their lives and to recognize His hand in their deliverance. By praising the Lord for His goodness and wonderful works, believers acknowledge God's sovereignty and care over their lives and express their gratitude for His provision and protection.

This verse also serves as a reminder of the importance of gratitude and praise in the life of a believer. It is easy to focus on the difficulties and challenges in life, but this verse encourages believers to shift their focus to the goodness of the Lord and to express thanksgiving for His faithfulness. By praising the Lord for His goodness, believers are reminded of His character and are encouraged to trust in His provision and care.

In a broader sense, this verse speaks to the power of praise and thanksgiving in the life of a believer. By acknowledging the goodness of the Lord and expressing gratitude for His wonderful works, believers are reminded of the faithfulness and care of God, which can strengthen their faith and trust in Him. It also serves as a testimony to others of God's faithfulness and can be a source of encouragement and hope.

In conclusion, Psalms 107:21 in the King James Version is a call to praise the Lord for His goodness and wonderful works towards His people. It encourages believers to reflect on the ways in which the Lord has intervened in their lives and to express gratitude for His provision and protection. It speaks to the power of praise and thanksgiving in the life of a believer, reminding them of the faithfulness of God and encouraging them to trust in His care.