It likely means “God is onto our game” = God sees what we’re doing and isn’t fooled by it. In other words, the phrase usually suggests that our intentions, tricks, or hidden motives are known to God.

Common meanings

  • God knows the truth behind people’s actions.
  • You can’t hide selfish motives or deception from God.
  • It can also mean God is aware of a bigger plan or spiritual struggle.

In plain English

Someone saying this might be trying to say:

  • “God knows our scheme.”
  • “God is watching what we’re up to.”
  • “God understands the real situation.”

Tone and context

The phrase sounds informal and a little ungrammatical, so it may be:

  • a paraphrase,
  • a typo,
  • or slang used in a religious discussion.

If you want, I can also rewrite it into natural English or explain what it means in a Bible context.