Psalm 73 (Psalm 73: 1-14)
15If I had said, “I will speak thus,”
I would have betrayed the generation of your children.
16But when I thought how to understand this,
it seemed to me a wearisome task,
17until I went into the sanctuary of God;
then I discerned their end.
18Truly you set them in slippery places;
you make them fall to ruin.
19How they are destroyed in a moment,
swept away utterly by terrors!
20Like a dream when one awakes,
O Lord, when you rouse yourself, you despise them as phantoms.
He kept up a respect for God’s people and with that he restrained himself from speaking what he thought amiss, v. 15.
It is bad to think ill, but it is worse to speak it, for that is giving the evil thought a imprimatur — a sanction; it is allowing it, giving consent to it, and publishing it for the infection of others. But it is a good sign that we repent of the evil imagination of the heart if we suppress it, and the error remains with ourselves. If therefore thou hast been foolish as to think evil, be so wise as to lay thy hand upon thy mouth, and let it go no further.
There are many great things, and things needful to be known, which will not be known otherwise than by going into the sanctuary of God, by the word and prayer. The sanctuary must therefore be the resort of a tempted soul.
Matthew Henry, Commentary on the Whole Bible, Psalm LXXIII, vs. 15-21, highlights