God has given us the privilege and responsibility of proclaiming the Gospel. But ultimately salvation comes by the Holy Spirit of God.
Zechariah 12:10-11;
“And I will pour on the house of David and on the inhabitants of Jerusalem the Spirit of grace and supplication; then they will look on Me whom they pierced. Yes, they will mourn for Him as one mourns for his only son, and grieve for Him as one grieves for a firstborn. 11 In that day there shall be a great mourning in Jerusalem.
Zechariah 13:1
“In that day a fountain shall be opened for the house of David and for the inhabitants of Jerusalem, for sin and for uncleanness.
PRAISE GOD FOR HIS PROMISE OF HIS SPIRIT OF GRACE AND SUPPLICATION BY WHICH ISRAEL WILL RECOGNIZE YESHUA AND REPENT.

In contrast to many small villages that turned the Jews in to the Nazis. The Ulmas gave refuge to two families, the Szalls and Goldman sisters. They were eventually turned in too. All were killed by the Nazis.