They
shall
know
that
I
am
Jehovah!
V
ol
.
L
X
X
I
S
emimonthly
FEBRUARY
15,
1950
C
O
N
T
E
N
T
S
“
S
tick
to
Y
our
W
ork
”
.........................
A
Ministry
o
f
Activity
.....................
Work,
a
Requirement
.........................
Why
Persevere
in
It
...........................
H
ow
to
S
tick
to
I
t
...............................
The
Freedom
of
a
Clear
Conscience
A
Sound
Investment
o
f
Effort
.........
W
hy
C
hristians
S
hun
T
obacco
......
Z
eciiariah
U
rges
G
od
’
s
S
ervice
D
espite
B
an
...................................
L
etter
[On
Converting
Calendar
Dates
for
the
“
Time
of
the
End”
]
..........
.
F
ield
E
xperience
...................................
.
“
S
eparating
to
the
R
ight
”
T
estimony
P
eriod
...........................
“
W
atchtower
”
S
tudies
.......................
0813
•
•••
__________
_____________
—
—
.
