Tawheed, which is the Oneness of Allah, is the highest goal and the most noblest knowledge as its final destination is Allah the Most High!

That is because Allah is the Truth – 22:62

The benefits of Tawheed are immeasurable. We mention a few of them here for the reader:

-It is the first command of Allah and the greatest of them:
“Say, “Come, I will recite what your Lord has prohibited to you. [He commands] that you not associate anything with Him, and to parents, good treatment..”(6:151)

-Deeds are not accepted without it:
“And We will regard what they have done of deeds and make them as dust dispersed.” (25:23)

It is the right of Allah on His slaves and the rights of Allah are most deserving to be fulfilled:
“The Prophet, peace and blessings be upon him, said, “O Mu’adh, do you know what is the right of Allah upon His servants?” I said, “Allah and His messenger know best.” The Prophet said, “To worship Him alone and to associate none in worship with Him” (Bukhari, Muslim)

-It is the purpose behind the creation of jinn and mankind:
“It is Allah who has created seven heavens and of the earth, the like of them. [His] command descends among them so you may know that Allah is over all things competent and that Allah has encompassed all things in knowledge.” (65:12)

-It is what saves from the fire and eternal humiliation:
“Whoever’s last words are: laa ilaaha illallaah; will enter Paradise” (Abu Dawud)

-It is the heaviest thing on the scales:
“A man from my nation will be called before all of creation on the Day of Resurrection, and ninety-nine scrolls will be spread out for him…Then a card will be brought out on which is written (the shahaadatain) (and it will out weigh the 99 scrolls)..” (Ibn Maajah)

-It is the foundation of the Islamic Society and soil for its fruit:
“Have you not considered how Allah presents an example, [making] a good word like a good tree, whose root is firmly fixed and its branches [high] in the sky?” (14:24)

It is what brings about unity and brotherhood amongst the believers and its opposite brings about division and enmity:
“and do not be of those who associate others with Allah, [Or] of those who have divided their religion and become sects, every faction rejoicing in what it has” (30:32)
-It is the cause of victory from Allah and it’s opposition brings humiliation:
“Indeed, We will support Our messengers and those who believe during the life of this world and on the Day when the witnesses will stand” (40:51)

-And safety and security on the day of Terror:
“They who believe and do not mix their belief with injustice – those will have security, and they are [rightly] guided.” (6:52)

-It is the cause of a spacious home in the life of the grave:
‘My slave has spoken the truth, so prepare for him a bed from Paradise and clothe him from Paradise, and open for him a gate to Paradise…” (Ahmad)

-It is the cause of the reuniting of the families on the day of judgement:
“Adn (Eden) Paradise (everlasting Gardens), which they shall enter and (also) those who acted righteously from among their fathers, and their wives, and their offspring” (13:23)

-It is the key to the entrance into Jannah:
It was said to Wahb Ibn Munabbih “Is not the key to Paradise the declaration that there is no God but Allah?” Wahb said:
Of course..” (Bukhari)

It’s ultimate reward is the meeting with your lord and seeing Him Azza wa jalla, which is only for the people of Laa ilaaha illallaah- the meaning of which is At-Tawheed.