Charles H. Spurgeon on Psalms 78:56

Yet they tempted and provoked the most high God. Change of condition had not altered their manners. They left their nomadic habits, but not their tendencies to wander from their God. Though every divine promise had been fulfilled to the letter, and the land flowing with milk and honey was actually their own, yet they tried the Lord again with unbelief, and provoked him with other sins. He is not only high and glorious, but most High, yea, the most High, the only being who deserves to be so highly had in honour; yet, instead of honouring him, Israel grieved him with rebellion. And kept not his testimonies. They were true to nothing but hereditary treachery; steadfast in nothing but in falsehood. They knew his truth and forgot it, his will and disobeyed it, his grace and perverted it to an occasion for greater transgression. Reader, dost thou need a looking glass? See here is one which suits the present expositor well; does it not also reflect thine image?