President Biden said on Thursday that he and Prime Minister Benjamin Netanyahu of Israel were headed toward a “come-to-Jesus meeting” over the humanitarian crisis in Gaza, according to an audio clip of the president’s remarks posted on social media on Friday.

Mr. Biden’s comment highlights the rising tensions between him and Mr. Netanyahu in recent weeks, as the civilian death toll in Gaza has risen inexorably and Mr. Biden has come under political pressure at home and abroad to do more to compel Israel to agree to a cease-fire.