"SACRED
To
the memory of
DAVID SMITH
who departed this life
Dec 29th 1841,
in full faith of A
blessed immortality.
Aged 70 years
7 Months & 16 Days.
Blessed are the dead [can't read the rest as it is below grade]"
The rest of the verse is probably the end of the phrase taken from the KJV of Revelations 14:13: "Blessed are the dead which die in the Lord"