18:18 Now 3 a certain ruler 4 asked him, “Good teacher, what must I do to inherit eternal life?” 5
1 tn Or “by being anxious.”
2 tn Or “a cubit to his height.” A cubit (πῆχυς, phcu") can measure length (normally about 45 cm or 18 inches) or time (a small unit, “hour” is usually used [BDAG 812 s.v.] although “day” has been suggested [L&N 67.151]). The term ἡλικία (Jhlikia) is ambiguous in the same way as πῆχυς. Most scholars take the term to describe age or length of life here, although a few refer it to bodily stature (see BDAG 435-36 s.v. 1.a for discussion). Worry about length of life seems a more natural figure than worry about height. However, the point either way is clear: Worrying adds nothing to life span or height.
3 tn Here καί (kai) has been translated as “now” to indicate the transition to a new topic.
4 sn Only Luke states this man is a ruler (cf. the parallels in Matt 19:16-22 and Mark 10:17-22, where the questioner is described only as “someone”). He is probably a civic leader of some kind, a leader in the society.
5 sn The rich man wanted to know what he must do to inherit eternal life, but Jesus had just finished teaching that eternal life was not earned but simply received (18:17). See the similar question about inheriting eternal life in Luke 10:25.