Liability accounts are tracked in reverse and are "credit normal". You increase the value (how much you owe) with a credit to the account and decrease the value (payments you receive) with a debit.
If you get money from somebody you "credit" them for giving you the money. You say "I must give you credit for having done this".
If money goes into your bank-account you don't credit your bank-account because money didn't come from there it went there. If you don't credit the bank account you must be doing something else and that is called "debit". When money goes to your bank-account you "debit" it because now the bank-account is more "indebted" to you. You don't have the cash in your wallet but the bank-account is indebted to you by that amount.
From the view-point of the bank-manager things are of course reverse. When you put money into your bank-account the bank-manager "credits" you-the-account (in their books) for having done so.
I guess a crucial thing to realize is that your bank-account in your books is a different thing from your bank-account in the books of the bank. It seems like there is only one bank-account, but two different parties (you and the bank) each have their own version of that "account" in their book-keeping system.
A double-entry book-keeping system is "subjective" in that it always describes things only from the viewpoint of whoever it is who is doing the book-keeping.