Does “comma” tell the purpose in which stage?

Could any native right my ideas?

Thanks a lot in advance.

For business purpose[,] he come toLondon. [for]----in regard to ;

For helping us do this[,] he has commanded us to meet often and partake of the sacrament.

To everyone’s amusement[,] the actor fell off the stage.

My son[,] George --------

to my son, unto George-----George is the only one response to my son;

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For business purpose he come toLondon. [for]----in favor of / resulting in /

For helping us do this he has commanded us to meet often and partake of the sacrament.

To everyone’s amusement the actor fell off the stage.

My son George--------to George, unto my son;