this [should be] a clear lesson unto all men, and a guidance and an admonition unto the God-conscious.

Here is a plain statement to men, a guidance and instruction to those who fear God!

This is a declaration for mankind, a guidance and an admonition unto those who ward off (evil)

This is a clear statement for men, and a guidance and an admonition to those who would keep their duty.

This [Qur'an] is a clear statement to [all] the people and a guidance and instruction for those conscious of Allah .