NET

8 After Isaac had been there a long time, Abimelech king of the Philistines happened to look out a window and observed Isaac caressing his wife Rebekah.

Darby

8 And it came to pass when he had been there some time^D216, that Abimelech the king of the Philistines looked out of the window, and saw, and behold, Isaac was dallying with Rebecca his wife.

Darby Bible Notes

time - Lit. 'when the days there were prolonged to him.'

KJV

8 And it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked out at a window, and saw, and, behold, Isaac [was] sporting with Rebekah his wife.

Strong's

8 And it came to pass, when he had been there a long^H748 time^H3117, that Abimelech^H40 king^H4428 of the Philistines^H6430 looked out^H8259 at^H1157 a window^H2474, and saw^H7200, and, behold, Isaac^H3327 was sporting^H6711 with Rebekah^H7259 his wife^H802.