We petition and thank God, but often neglect to praise him. While petitioning and thanksgiving center upon what we'd like to receive and what we have received, respectively, from God, praising is centered upon God alone, most likely most popular in heaven. In the Charismatic Renewal Movement of the Church, praising God has been the first order of business, and wondrous things happen as a result. Of course, the vocabulary for praising God is rather limited and this explains why your hear God being praised in tongues. You see, speaking in tongues is not something mysterious, but simply the natural outflow from us with an intense desire to praise God. Praise the Lord as often as you can to receive great blessings from him.