"Though you will not join in the greeting to the lost, the joy will go on, the restored one will have his place by the Father's side and in the Father's work. He that is forgiven much, the same loves much. But you will be in the darkness without. For “he that loveth not knoweth not God; for God is love.” 1 John 4:8 . COL 211.2"
"He that loveth not knoweth not God; for God is love."
The EGW passage directly quotes 1 John 4:8.
"Wherefore I say unto thee, Her sins, which are many, are forgiven; for she loved much: but to whom little is forgiven, the same loveth little."
Both passages directly link the amount of forgiveness received to the amount of love shown. The EGW passage builds upon the principle stated in Luke 7:47.
"I say unto you, that likewise joy shall be in heaven over one sinner that repenteth, more than over ninety and nine just persons, which need no repentance."
Both passages discuss joy in heaven/the Father's presence over a repentant sinner. However, the EGW passage focuses more on the exclusion of those who don't participate in that joy, making the connection thematic rather than a direct principle.