Charles H. Spurgeon on Psalms 122:4

Unto the testimony of Israel, and to give thanks unto the name of the Lord. These two mean nothing else than that in Jerusalem was the appointed place where the word was to be taught and prayer offered. But these ought to be written in golden letters, because David says nothing about the other services, but only of these two. He does not say that the Temple was divinely appointed, that there the victims should be sacrificed; that there incense should be offered; that oblations and sacrifices should be brought; that each one should by his gifts show his gratitude. He says nothing about these things, although only in the Temple were they commanded to be done. He makes mention only of prayer and of thanksgiving. Martin Luther.