G1917–ἐπιβουλή–epiboulē

but their plot became known to Saul. They watched the gates both day and night that they might kill him,

ἐπιβουλὴ epiboulē “plot”

When he had spent three months there, and a plot was made against him by Jews as he was about to set sail for Syria, he determined to return through Macedonia.

ἐπιβουλῆς epiboulēs “a plot”

serving the Lord with all humility, with many tears, and with trials which happened to me by the plots of the Jews;

ἐπιβουλαῖς epiboulais “plots”

When I was told that the Jews lay in wait for the man, I sent him to you immediately, charging his accusers also to bring their accusations against him before you. Farewell."

ἐπιβουλῆς epiboulēs “a plot that”