Luke 8:18 contains the identical saying about having and being given more, now applied to hearing the word.

Matthew 13:12 parallels the saying exactly, also in the context of understanding parables.

Matthew 21:43 says the kingdom will be taken from the unfaithful and given to those who produce fruit — the same warning of loss and transfer.

Matthew 25:29 repeats this exact principle in the Parable of the Talents — a parallel teaching on faithful stewardship.

Mark 4:25 presents the same saying in a different context — about hearing and measuring — deepening its universal application.

2 John 1:8 warns against losing what you have—directly paralleling the principle that from the one who has not, even what he has is taken.

Revelation 3:11 urges holding on to what you have so no one takes your crown—mirroring the 'to everyone who has, more will be given' principle.