Can someone clarify this verse for me? (learned muslims only)?

Yes brother Human where created here on Al-Ard (the earth) the paradise is something to strive for!.Allah gave life to us on earth and in this sence we where created here..WHile it is true that Allah SWTA is The All Knowing it is not so that the Angels are completely limited in knowledge of the future save for What Allah does not allow for them to know! Thus the Farishtaas did know what the future of mankind would hold at least in the part of murder, and the imperfection of mankind on earth@!