Read Mark 4:17 Using Other Translations
And have no root in themselves, and so endure but for a time: afterward, when affliction or persecution ariseth for the word's sake, immediately they are offended.
And they have no root in themselves, but endure for a while; then, when tribulation or persecution arises on account of the word, immediately they fall away.
But since they don’t have deep roots, they don’t last long. They fall away as soon as they have problems or are persecuted for believing God’s word.