Tree of knowledge. Warning was told in a vision-dream

The tree trunk of an oak..... the oak is the tree of knowledge.Google on oaks :A typical English oak tree starts producing acorns at around 40 years old, peaking in productivity around 80-120 years. Oaks, in general, can be productive for 300 years then rest for 300 years before moving on in the life cycle.You are reading that an oak producing acorn at 40 years ... 40 is a special numberA oaktree can be very old and peak in an old age, the knowledge take time.Oak is strong, durable and resists to fungal attack.The Hebrew words for 'oak' and 'terebinth' seem to derive from the ancient word for 'god'