The obvious answer is that we must take physical food to remain alive and healthy. By the time the Bible is complete, we have the full, glorious revelation of the One True God Who eternally exists in three Persons - the Father, the Son, and the Holy Spirit. Within the first three verses of the Bible, we have the revelation of the Trinity in seed form as we read of God and God's Spirit, and as we read the statement that God SAID - that is, the Word of God is at work. Jesus is called the Word of God in the gospel of John and elsewhere in the New Testament. Triune God is presented as the Great Source of all things.
Time comes into existence with created things, and time measurement is based on the heavenly bodies.
Likewise with space itself - that is, the three dimensions of length, width, and height in which all physical objects exist. The intangible, spiritual value called goodness is established by God as we see Him asserting that what He made was very good. We will look more closely at the origin of mankind below, but for now we should realize that we ourselves are the Creator's property, and that the good things that God established in His creation included the immaterial things of religious and moral purity, put into Adam's and Eve's beings on the day they were created. God alone is without origin or limits, and He is the Originator of everything and everyone else. The sun, moon, stars, earth and all inanimate objects are God's handiwork.