Praise ye the Lord - Hallelu-jah. See Psalms 146:1.
For it is good to sing praises unto our God - See the notes at Psalms 92:1 : “It is a good thing to give thanks unto the Lord.”
For it is pleasant - See the notes at Psalms 135:3 : “Sing praises unto his name, for it is pleasant.” The Hebrew word is the same.
And praise is comely - Becoming; proper. See the notes at Psalms 33:1 : “praise is comely for the upright.” The Hebrew word is the same. If these psalms were composed for the rededication of the temple, it would not be unnatural that much of the language employed should be borrowed from earlier psalms with which the people were familiar.