Bali Maharaja passed the severe test put before him by the Supreme Personality of Godhead. This is further proof of the Lord’s mercy toward His devotee. The Supreme Personality of Godhead sometimes puts a devotee to severe tests that are almost unbearable. One could hardly even live under the conditions forced upon Bali Maharaja. That Bali Maharaja endured all these severe tests and austerities is the mercy of the Supreme Lord. The Lord certainly appreciates the devotee’s forbearance, and it is recorded for the future glorification of the devotee. This was not an ordinary test. As described in this verse, hardly anyone could survive such a test, but for the future glorification of Bali Maharaja, one of the mahajanas, the Supreme Personality of Godhead not only tested him but also gave him the strength to tolerate such adversity. The Lord is so kind to His devotee that when severely testing him the Lord gives him the necessary strength to be tolerant and continue to remain a glorious devotee.

Srila Prabhupada, SB 8.22.29-30, full purport