Luke 2:35

Yea, a sword shall pierce through thy own soul also - Probably meaning, Thou also, as well as thy son, shall die a martyr for the truth. But as this is a metaphor used by the most respectable Greek writers to express the most pungent sorrow, it may here refer to the anguish Mary must have felt when standing beside the cross of her tortured son: John 19:25.

Yea, a sword ... - The sufferings and death of thy Son shall deeply afflict thy soul. And if Mary had not been thus forewarned and sustained by strong faith, she could not have borne the trials which came upon her Son; but God prepared her for it, and the holy mother of the dying Saviour was sustained.

That the thoughts ... - This is connected with the preceding verse: "He shall be a sign, a conspicuous object to be spoken against, that the thoughts of many hearts may be made manifest - that is, that they "might show" how much they hated holiness. Nothing so "brings out" the feelings of sinners as to tell them of Jesus Christ. Many treat him with silent contempt; many are ready to gnash their teeth; many curse him; all show how much by nature the heart is opposed to religion, and thus are really, in spite of themselves, fulfilling the scriptures and the prophecies. So true it that "none can say that Jesus is Lord but by the Holy Ghost," 1 Corinthians 12:3.

2:35 A sword shall pierce through thy own soul - So it did, when he suffered: particularly at his crucifixion.