For me I would personally prioritize on these:
Durance of Truth - pally ultimatum
Judgement - Your bread and butter skill for tanking (or heal)
Glory of Paladin - Must have buff for a tank pally; self regen when attacked and increase HP
Torah Sword - use divine guidance after torah sword will give you % damage reduction (also remove shield effect and slow down target)
Divine Guidance - team healing, damage, damage reduction
Reigning Sword - sweet damage plus silence and slow
My tanking skill rotation:
Shield of Sanctity - Judgement - Glory of Paladin - Durance of Truth - Torah Sword - Divine Guidance (or Shield of Order) - Reigning Sword
*Swap DG with SoO for damage if there’s another tank doing the tanking job.
This is just my personal build for templar that best suit me. Other pally might have a different skill set or build for them. Play around and test the skills and see what’s best for you
Hope this helps a little bit.