What does the Bible say about the blood of Christ shed for many?

In Mark 14:24, Jesus states, 'This is my blood of the New Testament, which is shed for many.' This highlights that Christ's sacrificial death was not a blanket provision for all people but was specific to those whom the Father has given Him. This aligns with the Reformed understanding that salvation is particular and effective only for the elect. The Lord’s blood was shed to redeem those chosen before the foundation of the world, ensuring that none of them will be lost, as per the doctrine of sovereign grace.