How is the word made effectual to salvation?

The Spirit of God makes the reading, but especially the preaching of the word, an effectual means of enlightening,[1] convincing, and humbling sinners;[2] of driving them out of themselves, and drawing them unto Christ;[3] of conforming them to his image,[4] and subduing them to his will;[5] of strengthening them against temptations and corruptions;[6] of building them up in grace,[7] and establishing their hearts in holiness and comfort through faith unto salvation.[8]