Verb paratēreō (to watch) in the Gospels-Acts

(Translation from NRSV)

Mark

3: 2They watched (paratēreō) him to see whether he would cure him on the sabbath, so that they might accuse him.

Luke

6: 7The scribes and the Pharisees watched (paratēreō) him to see whether he would cure on the sabbath, so that they might find an accusation against him.
14: 1On one occasion when Jesus was going to the house of a leader of the Pharisees to eat a meal on the sabbath, they were watching (paratēreō) him closely.
20: 20So they watched (paratēreō) him and sent spies who pretended to be honest, in order to trap him by what he said, so as to hand him over to the jurisdiction and authority of the governor.

Acts

9: 24but their plot became known to Saul. They were watching (paratēreō) the gates day and night so that they might kill him;