How Many Khutbahs Should Be Delivered?

It was narrated that Jabir bin Samurah said:

"I sat with the Prophet ﷺ and I did not see him deliver the khutbah except standing, and he sat, then he stood up and delivered the second khutbah."

أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ حَدَّثَنَا شَرِيكٌ، عَنْ سِمَاكٍ، عَنْ جَابِرِ بْنِ سَمُرَةَ، قَالَ جَالَسْتُ النَّبِيَّ ﷺ فَمَا رَأَيْتُهُ يَخْطُبُ إِلاَّ قَائِمًا وَيَجْلِسُ ثُمَّ يَقُومُ فَيَخْطُبُ الْخُطْبَةَ الآخِرَةَ .