en_tn/jdg/16/18.md

saw

"understood" or "learned"

the truth about everything

The word "everything" refers to the entire story about why he is so strong. AT: "truth about everything about the secret to his strength" (See: rc://en/ta/man/translate/figs-explicit)

Come up again

Delilah lived higher on the mountain than where the rulers were staying.

She had him fall asleep

"She caused him to fall asleep"

in her lap

"on Delilah's thighs" (the thigh is the upper leg)

the seven locks of his head

These were locks of hair. A lock holds something else in place. Samson's hair was separated into seven sections.

subdue him

"control him"

his strength had left him

AT: "his strength was gone" (See: rc://en/ta/man/translate/figs-personification)