Gamaliel's strategy hinges on a simple yet profound observation: true divine work withstands opposition, while human endeavors eventually collapse.
Gamaliel's core argument is that the origin of the apostles' movement is the ultimate deciding factor. He doesn't claim to know for sure if it's from God or man, but he proposes a test that requires no immediate, forceful action from the Sanhedrin:
The Failure of the Human
If the apostles' message and actions are merely the product of human ambition, planning, or deception ('of man'), then history shows such movements are inherently unstable. They lack the divine power to sustain them through opposition and eventually crumble under their own weight or through natural consequences.
The Futility of Opposing the Divine
Conversely, if their work stems from God ('of God'), then it possesses divine authority and power. Any attempt by human authorities to dismantle it would be like trying to fight against the Almighty. Such a struggle would not only be hopeless but also disastrous for those who oppose it.