'Fixed' in the Bible

They have not said to themselves,‘Let’s fear the Lord our God,who gives the rain, both early and late, in its season,who guarantees to us the fixed weeks of the harvest.’

This is what the Lord says:The One who gives the sun for light by day,the fixed order of moon and stars for light by night,who stirs up the sea and makes its waves roar—Yahweh of Hosts is His name:

This is what the Lord says: If I do not keep My covenant with the day and with the night and fail to establish the fixed order of heaven and earth,