Thus says the Lord of hosts, "Consider your ways! Go up to the mountains, bring wood and rebuild the temple, that I may be please with it and be glorified," says the Lord. "You look for much, but behold, it comes to little; when you bring it home, I blow it away. Why?" declares the Lord of hosts, "Because of My house which lies desolate, while each of you runs to his own house.
-Haggai 1:7-9 (great book of the Bible, BTW)
Then the Lord said, "Because this people draw near with their words and honor Me with their lip service, but they remove their hearts far from Me, and their reverence for Me consists of tradition learned by rote. Therefore behold, I will once again deal marvelously with this people, wondrously marvelous; and the wisdom of their wise men will perish, and the discernment of their discerning men will be concealed."
-Isaiah 29:13-14 (also quoted partially in Matthew 15:8-9)