

Бог его знает, где он сейчас.
God knows where he is now.
Я не верю в Бога.
I don't believe in God.
Слава Богу, ты уже дома!
Thank God, you're already home!
"Бог" is in the lesson "Character" (Level 19), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.