This created Kansa furious and he put Devaki and Vasudeva in jail. Although the eighth son of Devaki and Vasudeva was going to get rid of him, he killed every one of the seven small children of Devaki and Vasudeva as he didn't desire to consider any possibility. Sadhguru explains https://sadhna82615.timeblog.net/64931967/a-review-of-krishna