Here is the video on the page of the owner
First, did you see the small arrow down? click it
Then you will see a word Embed video
After that, this icon will appear and you need to copy the HTML source code
Now if you copied already go to Blogger and create new post then click the HTML
Paste it after you click the HTML
After you paste in the post editing this codes will appear, do not change or erase anything on the code.
Then finally Publish it!!