Abraham preaches to his people,

His people disputed
With him. He said:
"(Come) ye to dispute
With me, about God,
When He (Himself)
Hath guided me?
I fear not (the beings)
Ye associate with God"
Unless my Lord willeth,
(Nothing can happen),
My Lord comprehendeth
In His knowledge all things.
Will ye not ( yourselves)
Be admonished?

"How should I fear
(The beings) ye associate
With God, when ye
Fear not to give partners
To God without any warrant
Having been given to you?
Which of (us) two parties
Hath more right to security?
(Tell me) if ye know.

"It is those who believe
And mix not their beliefs
With wrong -that are
(Truly) in security, for they
Are on (right) guidance."

That was Our argument
Which We give to Abraham
(To us) against his people:
We raise whom We will,
Degree after degree:
For thy Lord is full
Of wisdom and Knowledge.

The story of Abraham is highly instructive for all men in quest of truth. If enlightenment go so far as to take a man beyond his ancestral worship, people will come to dispute with him. They will frighten him with the dire consquences of his dissent. What does he care? He has found the truth. He is free from superstitious fears, for has he not found the true God, without Whose Will nothing can happen? On the contrary he knows that it is the godless who have just grounds for fear. And he offers admonition to them, and arguments that should bring them the clearness of truth instead of the vagueness and mystery of superstition,- the security of Faith instead of the haunting fear of those who have no clear guidance.

The word "wrong" here refers to ascribing partners to God as has been stated by the Prophet (peace be on him) in the explanation of the verse.

The spiritual education of Abraham raised him many degrees above his contemporaries, and he was expected to use that knowledge and dignity for preaching the truth among his own people.