Translation:

4. Truly Allah loves those who fight in His Cause in battle array as if they were a solid cemented structure.

Notes (Tafseer)

5433. A battle array, in which a large number of men stand, march, or hold together against assault as if they were a solid wall, is a striking example of order, discipline, cohesion, and courage. "A solid cemented structure" is even a better simile than the usual "solid wall" as the "structure" or building implies a more diversified organisation held together in unity and strength, each part contributing strength in its own way, and the whole held together not like a mass but like a living organism. Cf. also xxxvii. I and n. 4031.