Al-Hadid 57:25

We have sent Our messengers with clear proofs, and sent down with them the Scripture and the criteria of justice, so that the people may uphold justice. And We sent down iron, in which there is great might and benefits for people, so that Allah may make known those who help His cause and His messengers without seeing Him. Indeed, Allah is All-Powerful, All-Mighty.

We have already sent Our messengers with clear evidences and sent down with them the Scripture and the balance that the people may maintain [their affairs] in justice. And We sent down iron, wherein is great military might and benefits for the people, and so that Allāh may make evident those who support Him and His messengers unseen. Indeed, Allāh is Powerful and Exalted in Might.

25. Indeed We have sent Our Messengers with clear proofs, and revealed with them the Scripture and the Balance (justice) that mankind may keep up justice. And We brought forth iron wherein is mighty power (in matters of war[3]), as well as many benefits for mankind, that Allâh may test who it is that will help Him (His religion) and His Messengers in the unseen. Verily, Allâh is All-Strong, All-Mighty.

[3] (V.57:25) Paradise is under the blades of swords (in Jihâd in Allâh’s cause).
a) Narrated Al-Mughîrah bin Shu‘bah رضي الله عنه : Our Prophet صلى الله عليه وسلم told us about the Message of our Lord that..."whoever amongst us is killed (in Jihâd in Allâh’s cause) will go to Paradise". ‘Umar asked the Prophet صلى الله عليه وسلم " Is it not true that our men who are killed (in Jihâd in Allâh’s cause) will go to Paradise and theirs (i.e. those of the pagan’s) will go to the (Hell) Fire?" The Prophet صلى الله عليه وسلم said, "Yes".
b) Narrated ‘Abdullâh bin Abî Aufâ رضي الله عنهما ! Allâh’s Messenger صلى الله عليه وسلم said, "Know that Paradise is under the shades of sword (Jihâd in Allâh’s cause). (Sahih Al-Bukhari, Vol.4, Hadîth No.73 and its chapter No.22).

We verily sent Our messengers with clear proofs, and revealed with them the Scripture and the Balance, that mankind may observe right measure; and He revealed iron, wherein is mighty power and (many) uses for mankind, and that Allah may know him who helpeth Him and His messengers, though unseen. Lo! Allah is Strong, Almighty.