Charles Spurgeon Commentary Genesis 8:7-10

"and he sent forth a raven, and it went forth to and fro, until the waters were dried up from off the earth. And he sent forth a dove from him, to see if the waters were abated from off the face of the ground; but the dove found no rest for the sole of her foot, and she returned unto him to the ark; for the waters were on the face of the whole earth: and he put forth his hand, and took her, and brought her in unto him into the ark. And he stayed yet other seven days; and again he sent forth the dove out of the ark;" — Genesis 8:7-10 (ASV)

Until the waters were dried up from of the earth. Also he sent forth a dove from him, to see if the waters were abated from of the face of the ground; But the dove found no rest for the sole of her foot, and she returned to him into the ark, for the waters were on the face of the whole earth: then he put forth his hand, and took her, and pulled her in to him into the ark. And he stayed yet other seven days;

I wonder whether Noah sent out these creatures on the Sabbath mornings. The mention of seven days, and the resting in between seems to look like it. Oh, dear friends, sometimes people send out a raven on the Lord's day morning, and it never brings them anything.

Send out a dove rather than a raven; come to the house of God with quiet, gentle, holy expectation, and your dove will come back to you. It may be that it will bring you something worth bringing one of these days, as Noah's dove brought to him.