RagnaokCzD, these are the sentences that pop out at me in relevant books that ask questions about the paladin-god relationship.
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5E PHB pg82 base paladin write up: 'Although many paladins are devoted to gods of good, a paladin's power comes as much from a commitment to justice itself as it does from a god.' And on the following page it asks a series of question for the player to think about when creating their paladin, such as: 'Are you a devoted servant of good. loyal to the gods of justice and honor, a holy knight in shining armor venturing forth to smite evil?'
5E Sword Coast Adventurer's Guide (SCAG) pg132 FR paladin write up: 'Most paladins in the Forgotten Realms, like clerics, are devoted to a particular deity.'
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It paints a picture that: - paladin + god = good - paladin + commitment to justice = good - paladin + several good gods = good - most paladin in FR + one god = good - few paladin in FR + several goods = good - and/or few paladin in FR + commitment to justice = good
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For me, this thread is a discussion and my opinion hasn't fully formed. But I do find it persuasive that dialogue lines need gravitas to justify including them.
Here's a question, should a cleric of Tyr and paladin of Tyr share dialogue lines?