Whom does God bring out of darkness into light and guide to the straight path?

Verses 15-16 of Chapter 5:

O People of the Scripture! Now has come to you Our Messenger explaining to you much of that which you used to hide from the Scripture and passing over much. Indeed, there has come to you from Allah a light and a plain Book. Wherewith Allah guides all those who seek His Pleasure to ways of peace, and He brings them out of darkness by His permission unto light and guides them to a straight path.