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18 And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.
"Birds" represent rational concepts in the external man and intellectual concepts in the internal man.
3 "'If his offering is a burnt offering from the herd, he shall offer a male without blemish. He shall offer it at the door of the Tent of Meeting, that he may be accepted before Yahweh.