Even when killing 'innocents',Arguments,My argument

The rationale for only elect infants being saved is that since God chose the elect before they were born, even before the foundation of the world (Eph. 1:4; cf. Rom. 8:29), it is reasonable to infer that He chose at least some infants to be saved, though perhaps not all. Ultimately, salvation does not come from the will of man (Rom. 9:16). Indeed, God has to give faith to the elect (Eph. 2:8-9; Phil. 1:29). So, it is possible that, through the blood of Christ, He can impute righteousness to elect infants who are not old enough to believe for themselves.

As for the justice of God according to this view, it is argued that God justly condemns the whole human race because of Adam's sin (Rom. 5:12-21). We are all sinners by nature (Eph. 2:3), from the moment of conception (Ps. 51:5), who deserve eternal hell. God has no obligation to save anyone. Only by His grace and Christ's sacrifice does He give some credit for the righteousness (Christ’s righteousness) necessary to stand in His presence. Christ's death was sufficient to atone for all human beings, although it efficiently applies only to those the Holy Spirit draws to Him. Among these, God is at least able and is surely willing to include infants. But just as with adults, only those who are justified can go to heaven.