神を信じる (kami wo shinjiru)
The Japanese phrase "kami wo shinjiru" meaning "Believe in God, Trust in God" is composed of the words 神 (read kami) meaning "God" and the verb 信じる (read shinjiru) meaning "trust in, believe in".
Notice that Japanese often omits the subject when it is clear. The natural interpretation of "kami wo shinjiru" is "I believe in God" as well as the more general "Believe in God".
Verify: 神を信じる in the Japanese-English Dictionary
Believe in God
神を信じる
kami wo shinjiru
Block Vertical VB3C
Believe in God
神を信じる
kami wo shinjiru
Cursive Vertical VC3B
Believe in God
神を信じる
kami wo shinjiru
Design Vertical VD7B
Believe in God
神を信じる
kami wo shinjiru
Semi-Cursive Vertical VS3C
Believe in God
神を信じる
kami wo shinjiru
Semi-Cursive Vertical VS5C
Believe in God
神を信じる
kami wo shinjiru
Block Horizontal HB3A
Believe in God
神を信じる
kami wo shinjiru
Cursive Horizontal HC3A
Believe in God
神を信じる
kami wo shinjiru
Semi-Cursive Horizontal HS3A