This is not about religion but just the logic of things. I have been hearing this phrase often from members of a Christian sect. My question is this - how do you praise the Lord? Their common answer is by saying that phrase. Well, have you praised someone when you say to another person to praise that someone?
“And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on the street corners to be seen by others. Truly I tell you, they have received their reward in full. But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you. And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words. Do not be like them, for your Father knows what you need before you ask him.”
I'm Muslim (converted), but when I was more of a Christian, I'd say just going to church and reading the Bible as much as possible. God knows how dedicated you are, so don't worry about it much.