Allah says:

[وَهُوَ الَّذِى فِى السَّمآءِ إِلَـهٌ وَفِى الاٌّرْضِ إِلَـهٌ]

(It is He Who is the only God in the heaven and the only God on the earth.) means, He is the God of those who are in the heavens and the God of those who are on earth; all of them worship Him and are humbled before Him.

[وَهُوَ الْحَكِيمُ الْعَلِيمُ]

(And He is the All-Wise, the All-Knower.) This Ayah is like the Ayah:

[وَهُوَ اللَّهُ فِى السَّمَـوَتِ وَفِى الاٌّرْضِ يَعْلَمُ سِرَّكُمْ وَجَهْرَكُمْ وَيَعْلَمُ مَا تَكْسِبُونَ ]

(And He is Allah in the heavens and on the earth; He knows what you conceal and what you reveal, and He knows what you earn.) (6:3) which means, He is the One who is called Allah in the heavens and on the earth.

[وَتَبَارَكَ الَّذِى لَهُ مُلْكُ السَّمَـوَتِ وَالاٌّرْضِ وَمَا بَيْنَهُمَا]

(And Blessed be He to Whom belongs the kingdom of the heavens and the earth, and all that is between them,) means, He is their Creator and Sovereign, the One Who is controlling them with none to resist or oppose His rule. Blessed and exalted be He far above the notion of His having a child. He is eternally free of all faults and shortcomings, because He is the Lord, the Exalted, the Almighty, the Sovereign of all things, Who is in control of all affairs.

[وَعِندَهُ عِلْمُ السَّاعَةِ]

(and with Whom is the knowledge of the Hour, ) means, no one knows when it will happen except Him.

[وَإِلَيْهِ تُرْجَعُونَ]

(and to Whom you (all) will be returned.) means, and each person will be requited for his deeds; if they are good, then he will be rewarded, and if they are bad, then he will be punished.