'La connaissance' is more like 'familiarity', whereas 'le savoir' is 'knowledge'.
Une connaissance means someone we are familiar with but la connaissance means knowledge
These two links might be of help:
Why do you need Le in front of savoir. How do you know if it is The knowledge or knowledge
Familiarity with idiomatic English will help you interpret "le savoir" as "knowledge".
The only time you would use "the knowledge" is when you are referring to the test that London taxicab drivers have to take.