Gen 8:11-12
11 And the dove came in to him in the evening; and, lo, in her mouth was an olive leaf pluckt off: so Noah knew that the waters were abated from off the earth.

12 And he stayed yet other seven days; and sent forth the dove; which returned not again unto him any more.
KJV

Gen 8:22
22 While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.
KJV