18 I have surely heard Ephraim bemoaning himself thus; Thou hast chastised me, and I was chastised, as a bullock unaccustomed to the yoke: turn thou me, and I shall be turned; for thou art the Lord my God.
19 Surely after that I was turned, I repented; and after that I was instructed, I smote upon my thigh: I was ashamed, yea, even confounded, because I did bear the reproach of my youth.
Repentance is the fruit of being turned by Christ, It is God Our Saviour through the Person and Work of the Lord Jesus Christ, that men are given repentance Acts 5:31
31 Him hath God exalted with his right hand to be a Prince and a Saviour, for to give repentance to Israel, and forgiveness of sins.
18 When they heard these things, they held their peace, and glorified God, saying, Then hath God also to the Gentiles granted repentance unto life.
Note: Repentance of this nature must be given, we have it not in us by nature !
Now in fact, its an accomplishment of His death for us, and heres why !
The prophets stated "Surely after that I was turned, I repented"
In other words, his act of repenting was effected by him being first acted upon ! He was first turned, and AFTER that he repented !
The word turned in Jer 31:19 is shub: to turn back, return, so in this case it means to be returned or to be turned back, it means to bring back, it means to convert !
The word also corresponds with the NT word returned here in 1 Pet 2:25
25 For ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.
here its the greek word epistrepho which means, to cause to return, to bring back unto the Love and Obedience of God, and its in the passive voice, which denotes that they are being returned, acted upon, and this is effected by what transpired in Vs 24 1 Pet 2:24
24 Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed.
Its the results of the healing that His stripes/death brings, a conversion to God !
And its this being returned that brings forth or causes our repentance, as the Prophet said, AFTER i was turned, I repented !