Because of this, the Lord truly rested on the seventh day and has not had to create since.
Notice that the grasses and trees were brought forth from the earth. They weren't just made to grow in the earth but were brought forth from the earth. They were already in the earth and God just spoke for them to come forth. Compare with Ge 1:26.
Man was created last of all God's creation. Thus everything was prepared for him in advance. He didn't have to tread water for a few days until the dry land appeared, and he didn't have to dodge trees and shrubs as they suddenly came forth. If God would have created man earlier, things wouldn't have been ready for him. But man was created and then moved immediately into the rest of God, where everything was complete.
Adam didn't have to plant trees or vegetables. They were already created and producing fruit. All he had to do was partake of what was already done. Likewise, in the new creation, Jesus has already provided everything, and all we have to do is receive by faith what is already ours. It's a done deal. We need to enter into the rest of the Lord. Heb 4:9 says, "There remaineth therefore a rest to the people of God."
In all the rest of creation, God just spoke and told the waters to bring forth all the fish and fowls of the air. He told the earth to bring forth all the animals. But even though He used the dust of the earth to create man's body, He was directly involved in the creation of man. Man was the crowning jewel of His creation, and He took special care and created us in His likeness and image.
Man was like God in many ways. One obvious likeness was that man was totally free to choose his course, as is God. We were made free moral agents in every sense of the word. Our best choice is to follow the will of the Lord, but God will protect our freedom of choice, even when it brings Him or us suffering.
Mankind was given an unconditional authority over this earth. There was no restriction or fine print. The rulership of this earth is ours to do with as we wish. In this sense, our authority is far superior to that of angels. Angels have delegated authority. If they rebel, their God-given authority ends. Satan saw this and therefore got mankind to submit to him through lies, and transfer this authority over the earth to him through our obedience. Ro 6:16 says, "Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness?"
The creation of angels is not detailed in Scripture nor is the time of their creation given. We can be sure that the Lord didn't create Satan. He created Lucifer, a godly angel (Isa 14 and Eze 28) and in a very real sense, man made Satan when we transferred our God-given power and authority over to him.