Under a moral obligation to someone.

Roget 916: grateful, thankful, obliged, beholden, indebted to, under obligation.   

See with attention:
— Behold Christ!.

synonym: lay eyes on.

Roget 444: witness, behold etc. (see) 441; look on etc. (be present) 186; gawk, rubber [Slang], rubberneck [U.S.].   

Roget 441: see, behold, discern, perceive, have in sight, descry, sight, make out, discover, distinguish, recognize, spy, espy, ken [Scot.]; get a sight of, have a sight of, catch a sight of, get a glimpse of, have a glimpse of, catch a glimpse of; command a view of; witness, contemplate, speculate; cast the eyes on, set the eyes on; be a spectator of etc. 444; look on etc. (be present) 186; see sights etc. (curiosity) 455; see at a glance etc. (intelligence) 498.    look, view, eye; lift up the eyes, open one's eye; look at, look on, look upon, look over, look about one, look round; survey, scan, inspect; run the eye over, run the eye through; reconnoiter, glance round, glance on, glance over turn one's looks upon, bend one's looks upon; direct the eyes to, turn the eyes on, cast a glance.    observe etc. (attend to) 457; watch etc. (care) 459; see with one's own eyes; watch for etc. (expect) 507; peep, peer, pry, take a peep; play at bopeep^†.    look full in the face, look hard at, look intently; strain one's eyes; fix the eyes upon, rivet the eyes upon; stare, gaze; pore over, gloat on; leer, ogle, glare; goggle; cock the eye, squint, gloat, look askance.    ... show more

Dutch: gadeslaan, beschouwen, aanschouwen, zien, waarnemen