Why is the prayer of the upright his delight? Because the joy that our Father gives is lasting and remains forever, because when He arrives, our sadness changes to eternal joy.
When we pray to our Lord we do it with love, also when we have some kind of problem, we go before God and ask for everything to be resolved in peace.
Even when we are in good times, we feel joyful and glorify God for that, because when certain proof come, if we are not within that joy and that peace of God, faith can fail as we would not endure.
The sacrifice of the wicked is an abomination to the Lord: but the prayer of the upright is his delight.
That is why the book of proverbs throw us some words of great comfort. It gives us to understand that in God our joy increases, that joy does not fade.
Men sometimes tend to focus more on the peace that God gives than on the things that can really give us encouragement and joy that is our God, they trust things that only hurt the one who practices them. These people make sacrifices that do not please God, they are abominable before God, which God does not receive, but quickly reject them, because God receives sacrifices that are subject to His law, and if these people are within His ways Straight and perfect.
Let us continue in joy and enjoying our peace in the name of the Lord, this is the path of truth, of justice. God Himself will help us and give us new strength so that we can pray to Him with joy.
It is good that when we pray to the Lord, we do it from the deepest part of the heart, and that our sacrifice do not be a sacrifice full of abomination before God, but holy and purified before Him.