Why Is Rajab A Holy Month?
Articles on Reason of Sacredness for Rajab: https://muslimhands.org.uk/latest/2021/02/history-importance-and-benefits-of-rajab-in-quran-and-hadith https://www.world-federation.org/news/importance-rajab https://www.dar-alifta.org/Foreign/ViewArticle.aspx?ID=5739&CategoryID=2 Importance of Rajab in Shia Mazhab: https://en.wikishia.net/view/Rajab
Here is my Personal Opinion: It might be that the month of Rajab falls very close to Ramzan. And Allah Talla wants us to prepare for this holy month mentally and physically. God Knows Best. Also Rajab may also be related to a verb meaning “to remove”, so called because pre-Islamic Arabs would remove the heads of their spears and refrain from fighting. God Bless.