Salam
Bismillah
When we read AlQuran, we must always think of Rasulullah SAW because only His Messenger Nabi Muhammad SAW that purely understand AlQuran (His Commands). So, we as His slave and the follower/believer of ummat Nabi Muhammad SAW prays to Allah SWT to guide us all (siratul mustaqim) in understanding of His Commands (ayat).
Rasulullah SAW have a very very good character (akhlak) when come to communication with people. So, in your case with ayat 17:53 -
The believers have been enjoined to say only the best things even in their discussion with the disbelievers and other opponents of their Faith. They should neither use harsh words nor make exaggerated statements. They should be cool in their conversation and say only what is true and dignified in spite of the provoking behavior of the opponents. As a believer have been forewarned to guard against the provocations of Satan, as if to say, "While answering your opponents, if you feel that you are being aroused to anger, you should at once understand that it is Satan who is exciting you in order to do harm to your dispute, in which he wants to engage human beings for sowing discord between them."
Please read surah Al Anfal 8:46-48 (Allah SWT reminded us is about satan duties)
Wallahu'alam. I am maybe wrong and do forgive me in learning to understand Allah and Rasul.