how to use previous commit message after push in git code example

Example 1: how to change a commit message after push

git commit --amend -m "New commit message"
Then
git push --force
and you're done

Example 2: git amend commit message after push

$ git commit --amend -m "New and correct message"

Example 3: how to revert back to previous commit in git

# This will destroy any local modifications.
# Don't do it if you have uncommitted work you want to keep.
git reset --hard 0d1d7fc32

# Alternatively, if there's work to keep:
git stash
git reset --hard 0d1d7fc32
git stash pop
# This saves the modifications, then reapplies that patch after resetting.
# You could get merge conflicts, if you've modified things which were
# changed since the commit you reset to.