Allah is Omniscient (Knowing Everything)

(Muhammad), We bear witness to all your affairs; whatever you recite from the Quran and whatever you (people) do. Nothing in the heavens or...

(Muhammad), We bear witness to all your affairs; whatever you recite from the Quran and whatever you (people) do. Nothing in the heavens or the earth is hidden from your Lord, even that which is as small as an atom's weight or greater or smaller. All is recorded in the glorious Book. (10:61) yunus

This verse makes it clearly understood that the Book of God mentioned here is not the one in any written or printed form but the Sacred Tablet (the Lauhe - Mahfooz) in which is secured the knowledge of everything in the Universe and the Will of the Lord.

Allah is Omnipotent and Omnipresent (Having infinite power & being present everywhere)

We swear that We have created the human being and We know what his soul whispers to him. We are closer to him than even his jugular vein (50:16). QAF

Man has been created by God. God knows everything, even the innermost i.e. the most latent endowments of the feelings and thoughts of each individual. The life-vein i.e. the jugular vein which is the big trunk vein, running on each side of the neck which brings the blood back from the head to the heart, which is considered so near to the life of an individual is cited here just to illustrate that God is nearer to the very existence of the individual than the very vein on which his life depends.