2:208

يَا أَيُّهَا الَّذِينَ آمَنُوا ادْخُلُوا فِي السِّلْمِ كَافَّةً وَلَا تَتَّبِعُوا خُطُوَاتِ الشَّيْطَانِ ۚ إِنَّهُ لَكُمْ عَدُوٌّ مُّبِينٌ

O you who have believed, enter into Islam completely [and perfectly] and do not follow the footsteps of Satan. Indeed, he is to you a clear enemy.

Bangla

হে ঈমানদার গন! তোমরা পরিপূর্ণভাবে ইসলামের অন্তর্ভুক্ত হয়ে যাও এবং শয়তানের পদাংক অনুসরণ কর না। নিশ্চিত রূপে সে তোমাদের প্রকাশ্য শত্রু।

My Critical Reasoning:

Does this sound like Allah talking 2 different things here?
Enter into Islam COMPLETELY
and
Do not follow shaitan’s footstep
Of course, it is two different things. One is instruction to do and one is prohibition not to do.
That’s first thing to understand from this.
But then, why Allah Subhanahu put this together? Does it sound more like they have a close link to each other?
Of course they do. If you use your brain to just give it a little thought you will see just one strong relation between the two, which is,
If you do not obey Allah completely, you will definitely follow shaitan. This is the certain info, certain knowledge for you O Muslim, from the one who made you.
What is complete Islam?
It is what encompasses all guidelines, laws, instructions, prohibitions, limits.
If you leave something from there would it be a complete Islam?
No, if there is not complete Islam, the missing part is taken and filled by the path of shaitan.
Now apply it in all those instructions and limits and prohibitions of Allah that you are not following and then you can see who you following, none other but shaitan.
What is a big chunk of Islam that the entire Ummah has abandoned?
Khilafah, Inna lillahi wa inna ilaihi rajiun
And then what is the next best chunk of that complete Islam that Ummah abandoned and made almost Haram to pronounce and define it intentionally wrongly?
Jihad. Inna lillahi wa inna ilaihi rajiun
Therefore, what is the path the Muslims heading towards?
The path of shaitan.
And where the path of shaitan leads to?
Jahannam.
And Allah knows best.
May Allah guide Muslim fully in the path of Allah subhanahu, Ameen.