Exegesis:

kai egeneto ‘and it happened,’ cf. on 1.8. The connecting clause begins either with kai autoi (cf. Revised Standard Version), or with kai idou, in v. 2 (cf. The Four Gospels – a New Translation), preferably the former.

en tō elthein auton ‘after his going,’ or ‘when he had gone,’ because of the aorist tense of elthein.

eis oikon tinos tōn archontōn [tōn] Pharisaiōn ‘into the house of one of the leaders of the Pharisees’ (cf. The Four Gospels – a New Translation, Phillips, New English Bible), or ‘into the house of one of the rulers who were Pharisees’ (cf. Revised Standard Version, An American Translation), preferably the former. archontes is to be understood in the more general sense of ‘leaders,’ ‘leading personalities.’ For the Pharisees cf. on 5.17.

sabbatō ‘on a sabbath,’ goes with elthein.

phagein arton lit. ‘in order to eat bread’ (final infinitive), i.e. ‘to take a meal,’ ‘to dine.’

kai autoi ēsan paratēroumenoi auton ‘and they were watching him closely,’ durative imperfect. kai at the beginning of the apodosis is due to Hebrew idiom. autoi refers to those present at the meal as if they had been mentioned already previously. For paratēreō cf. on 6.7.

Translation:

He went to dine …, preferably, ‘he/Jesus had gone into (or, entered) … to dine (there)’; the attention is on the moment when the guests are arriving.

To dine in the house of, cf. 11.37. Since an invitation is implied, one should avoid a rendering suggesting that Jesus went on his own initiative.

A ruler who belonged to the Pharisees, preferably “one of the leading Pharisees” (The Four Gospels – a New Translation, and see Exegesis), ‘a prominent/important (lit. most-in-front) Ph.’ (Bahasa Indonesia RC), ‘one of the notable Pharisees’ (cf. Medumba), ‘one of the big men of the Pharisee group.’

They were watching him. The pronoun refers to the host and his friends. For the verb see 6.7; Sranan Tongo uses here ‘they held him good in the eye.’

Quoted with permission from Reiling, J. and Swellengrebel, J.L. A Handbook on the Gospel of Luke. (UBS Handbook Series). New York: UBS, 1971. For this and other handbooks for translators see here . Make sure to also consult the Handbook on the Gospel of Mark for parallel or similar verses.