Spiritual experience does not guarantee infallibility

10 ^1-7 For I should like to remind you, my brothers, that our ancestors all had the experience of being guided by the cloud in the desert and of crossing the sea dry-shod. They were all, so to speak, “baptised” into Moses by these experiences. They all shared the same spiritual food and drank the same spiritual drink (for they drank from the spiritual rock which followed them, and that rock was Christ). Yet in spite of all these wonderful experiences many of them failed to please God, and left their bones in the desert. Now in these events our ancestors stand as examples to us, warning us not to crave after evil things as they did. Nor are you to worship false gods as they did. The scripture says—‘The people sat down to eat and drink, and rose up to play.’

^8-10 Neither should we give way to sexual immorality as did some of them, for we read that twenty-three thousand fell in a single day! Nor should we dare to exploit the goodness of God as some of them did, and fell victims to poisonous snakes. Nor yet must you curse the lot that God has appointed to you as they did, and met their end at the hand of the angel of death.