Hebrews 5:12

For although from the length of your Christian experience you ought to be teaching others, you actually need someone to teach you over again the very elements of Christian truth, and you have come to need milk instead of solid food.

Treasury of Scripture Knowledge

Summary

I said, Days should speak, and multitude of years should teach wisdom.

General references

Bible References

General references

Hebrews 5:12
For although from the length of your Christian experience you ought to be teaching others, you actually need someone to teach you over again the very elements of Christian truth, and you have come to need milk instead of solid food.