Joy comes to our hearts when we praise God with all our hearts, even when we leave our problems in the hands of God.
Praise ye the Lord. Praise God in his sanctuary: praise him in the firmament of his power.
When we enter the house of the Lord we should do it with joy and rejoicing, and glorify Him because He is great and wonderful. Prostrate before Him with praise.
Praise him for his mighty acts: praise him according to his excellent greatness.