Proverbs 24:11-12 Behold, we knew it not...

Pro 24:11  If thou forbear to deliver them that are drawn unto death, and those that are ready to be slain;

Pro 24:12  If thou sayest, Behold, we knew it not; doth not he that pondereth the heart consider it? and he that keepeth thy soul, doth not he know it? and shall not he render to every man according to his works?

It is wise ro consider the eternal side of this passage..

Mat 10:28  And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell.

Rom 11:14  If by any means I may provoke to emulation them which are my flesh, and might save some of them.

1Co 9:22  To the weak became I as weak, that I might gain the weak: I am made all things to all men, that I might by all means save some.

Act 2:36  Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.

Act 2:37  Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?

Act 2:38  Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.

Or this more chilling passage.

Ezekiel Is Israel's Watchman

Eze 33:1  Again the word of the LORD came unto me, saying,

Eze 33:2  Son of man, speak to the children of thy people, and say unto them, When I bring the sword upon a land, if the people of the land take a man of their coasts, and set him for their watchman:

Eze 33:3  If when he seeth the sword come upon the land, he blow the trumpet, and warn the people;

Eze 33:4  Then whosoever heareth the sound of the trumpet, and taketh not warning; if the sword come, and take him away, his blood shall be upon his own head.

Eze 33:5  He heard the sound of the trumpet, and took not warning; his blood shall be upon him. But he that taketh warning shall deliver his soul.

Eze 33:6  But if the watchman see the sword come, and blow not the trumpet, and the people be not warned; if the sword come, and take any person from among them, he is taken away in his iniquity; but his blood will I require at the watchman's hand.

Eze 33:7  So thou, O son of man, I have set thee a watchman unto the house of Israel; therefore thou shalt hear the word at my mouth, and warn them from me.

Eze 33:8  When I say unto the wicked, O wicked man, thou shalt surely die; if thou dost not speak to warn the wicked from his way, that wicked man shall die in his iniquity; but his blood will I require at thine hand.

Eze 33:9  Nevertheless, if thou warn the wicked of his way to turn from it; if he do not turn from his way, he shall die in his iniquity; but thou hast delivered thy soul.

You can read what Old John Gill writes...

Proverbs 24:11

If thou forbear to deliver them that are drawn unto death,.... Or "taken for or unto death" (h), in a violent way; who are taken by thieves and robbers, and used in a barbarous manner, as the man in the parable, whom the priest and Levite took no notice of, and was helped by the good Samaritan; or who are unjustly sentenced and appointed to death by the civil magistrate; if any know their innocency, it becomes them to do all they can to save their lives, by bearing a testimony for them; for "a true witness delivereth souls", Pro 14:25; or by interceding for them, and giving counsel and advice concerning them, or by any lawful way they can; as Reuben delivered Joseph, Jonathan interceded for David, and Ahikam and Ebedmelech for Jeremiah. Life is valuable, and all means should be taken to save it, and to prevent the shedding of innocent blood; and a man should not forbear or spare any cost, or pains, or time, to such service: likewise such as are drawn into snares and temptations, into immorality or heresy, which tend to the ruin of the souls of men, and bring them to eternal death; all proper, methods should be taken to restore such persons, to recover them out of the snare of the devil, which is saving souls from death, and covering a multitude of sins; see 2Ti 2:25, Jas 5:19;

and those that are ready to be slain; or (i) "bending to slaughter"; are within a little of being executed, or put to death, upon a false accusation; for about others that suffer righteously there need not be that concern here pressed, or whose works and ways incline to destruction and lead to it, of which they seem not very far off.

(h) לקחים למות "captos ad mortem", Montanus. Piscator, Schultens. (i) מטימ להרג"inclinantes ad necem", Mercerus; "nutantes ad occasionem", Montanus, Coeccius; "nutantes ad lanienam", Schultens.

Proverbs 24:12

If thou sayest, Behold, we knew it not,.... The danger the person was in; or the innocency of his cause; or what method to take to deliver him; or that it was in our power to do anything for him; so the Vulgate Latin version, "if thou sayest, strength is not sufficient": or "we knew him not" (k), who he was or what he was; had no knowledge of him, or acquaintance with him, and so did not think ourselves under any obligation to regard his case; such excuses will not do;

doth not he that pondereth the heart consider it? he that searches the heart and tries it, and weighs every thought of it, and excuse it makes, considers and understands whether it is a mere excuse or not; though such excuses may appear plausible to men, yet to God that knows the heart they are of no avail; for he knows it to be a mere shift, and that it was unwillingness to help the distressed, and a neglect of their case; and that all that is said on their own behalf is a vain pretence;

and he that keepeth thy soul, doth not he know it? he that upholds it in life, and whose visitation preserves it, and therefore should be careful of the life of another; and if not, may justly fear the Lord will withdraw his care and preservation of them; he knows perfectly well what regard a man has to the welfare of another, or to the preservation of another man's life when in danger; and whether what he says on his own behalf is well founded: or "he that observeth thy soul" (l); all the inward motions of it, the thoughts, affections, purposes, and inclinations; he knows whether what is said is true or not;

and shall not he render to every man according to his works? and behave towards him according to the law of retaliation; the same measure he measures to others, he will measure to him again; and who having shown no mercy in saving the lives of others, when he could have done it, shall have judgment executed on him without mercy, when he is in distress.

(k) לא ידענו זה, ουκ οιδα τουτον, Sept. "non noverimus istum", Gejerus; "non novimus hunc", Pagninus, Montanus, Michaelis. (l) ונצר נפשך "et qui observat animam tuam", Michaelis, Schultens; "observator animae tuae", Tigurine version, Gejerus.