Refresh the heart of God with your praise.

Abraham, a man of faith who understood what pleases God, did not expect God to serve him but postured himself to serve the Lord. When God appeared to Abraham (recorded in Genesis 18) he bowed down and asked for God to stay for dinner. His desire: that God would be refreshed. That is the heart of a person who worships God in spirit and truth.  

Genesis 18:4-5
[Abraham said] Please let a little water be brought, and wash your feet, and rest yourselves under the tree. 5 And I will bring a morsel of bread, that you may refresh your hearts.

Words of praise from your own mouth is like giving God fruit to eat. Just as a fresh, juicy piece of watermelon on a hot, summer day refreshes you, so God’s heart is refreshed by our praise.  

Hebrews 13:15-16
Therefore by Him let us continually offer the sacrifice of praise to God, that is, the fruit of our lips, giving thanks to His name. 16 But do not forget to do good and to share, for with such sacrifices God is well pleased.

The priests of Israel were commanded to offer animals as sacrifices to God; these holy BBQs were pleasing to God. But David tells us it’s not meat God is after, but rather our heart.
Our songs of praise, from a sincere and humble heart of faith, is like a sweet smell to God. Just like the smell of BBQ or fresh apple pie makes your mouth water and draws you like a magnet to the source of the smell, so God is drawn to our sincere praise.

Leviticus 1:9
And the priest shall burn ALL on the altar as a burnt sacrifice, an offering made by fire, a sweet aroma to the Lord.

Psalm 51:16-17
For You do not desire sacrifice, or else I would give it;You do not delight in burnt offering.17The sacrifices of God are a broken spirit,A broken and a contrite HEART—These, O God, You will not despise.

1 peter 2:5
…you also, as living stones, are being built up a spiritual house, a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ. 

When you praise God, you invite him to be with you; you prepare a place for him to sit like Abraham did in Genesis 18. Just as we are honored when someone invites us to dinner and prepares something special for us, so God is honored when we praise him. He feels comfortable, welcome, and at rest to sit down and spend quality time with us.

Psalm 22:3
But You are holy, Enthroned in the praises of Israel.

Do you want to please the Lord? Do you want to refresh his heart? Then offer him a sacrifice of praise. Brag on God, boast about him, thank him for who he is and what he has done for you.

You praise will refresh his heart and attract him to you.