'Preserve' in the Bible

and a letter for Asaph the keeper of the king's nature preserve, so that he will give me timber for beams for the gates of the fortress adjacent to the temple and for the city wall and for the house to which I go." So the king granted me these requests, for the good hand of my God was on me.

[And Ezra said],“You are the Lord, You alone;You have made the heavens,The heaven of heavens with all their host (the heavenly bodies),The earth and everything that is on it,The seas and everything that is in them.You give life to all of them,And the heavenly host is bowing down [in worship] to You.