He is the one and only deity, the one who is worshipped and the one who deserves to be worshipped by the whole of His creation. This is due to the perfect and beautiful godly Attributes that He is described with.
“Allah! There is none worthy of worship but He, the Living, the Self-Sustaining. He is not subject to drowsiness or sleep. To Him belongs whatsoever is in the heavens and the earth. Who is there that can intercede with Him except with His Permission? He Knows what is before them and what is behind them, but they cannot encompass anything of His Knowledge except that which He Wills. His Footstool encompasses the heavens and the earth and He feels no fatigue in preserving them. He is the Most High, the Most Great.”
[al-Baqarah (2): 255]
From “Explanation to the Beautiful and Perfect Names of Allah” — Shaykh as-Sa’di (d.1376H)