In the case of a will, it is necessary to establish the death of the one who made it,
Berean Standard Bible (BSB)
For where a last will and testament is, there must of necessity be the death of him who made it.
World English Bible (WEB)
For{G1063} where{G3699} a testament{G1242} is, there must also of necessity{G318} be{G5342}{(G5745)} the death{G2288} of the testator{G1303}{(G5642)}.
Strong's King James
(16) For where there's a covenant there's a necessity for the death of the one arranging it.
The F.O.G
The F.O.G Message
for where a covenant is, the death of the covenant-victim to come in is necessary,
Young's Literal Translation