This is the 4258th most frequent Japanese word.
信じる
To believe.
This sentence uses '信じます', the polite form of '信じる', to express trust or belief in someone's statements.
私はあなたの言葉を信じます。
I believe in your words.
In this sentence, '信じている' is used in the present progressive form to show ongoing trust in oneself.
彼は自分自身を信じている。
He believes in himself.
Here, '信じている' reflects a belief or hope in something happening or being true.