﴿ فَإِذَا رَكِبُوا۟ فِى ٱلْفُلْكِ دَعَوُا۟ ٱللَّهَ مُخْلِصِينَ لَهُ ٱلدِّينَ فَلَمَّا نَجَّىٰهُمْ إِلَى ٱلْبَرِّ إِذَا هُمْ يُشْرِكُونَ ﴾

“And so, when they embark on a ship [and find themselves in danger], they call unto God, [at that moment] sincere in their faith in Him alone; but as soon as He has brought them safe ashore, they [begin to] ascribe to imaginary powers a share in His divinity:”

Please check ayah 29:66 for complete tafsir.