For a will takes effect only when a person has died; it cannot possibly be valid so long as the one (diathemenos | διαθέμενος | aor mid ptcp nom sg masc) who (diathemenos | διαθέμενος | aor mid ptcp nom sg masc) made (diathemenos | διαθέμενος | aor mid ptcp nom sg masc) it is still alive.
Reference
Hebrews 9:17
Sequence
5