When I donated blood some time ago, a nurse gave me a card to read while a pint of the vital red fluid was flowing out of my vein. The card showed the percentages of people who have different blood types. Here are some of them:
O-Positive 37.4%
A-Positive 35.7%
A-Negative 6.3%
B-Negative 1.5%
The rarest, AB-Negative, is found in only 1 in 167 people, or 0.6% of the population. Then the card made this eye-catching statement: "The rarest blood type is the one that’s not there when you need it."
There is another supply of blood that is one of a kind and always available to those who ask for it. First John 1:7 states, "The blood of Jesus Christ His Son cleanses us from all sin."
It was the death of Christ  the shedding of His blood that satisfied the demand of a holy God as payment for our sins (Heb. 9:12, 22). So now, whenever a person cries out in faith to God, repenting of his sin and pleading for forgiveness, his prayer for salvation is answered.
I am deeply grateful that Jesus is willing to die on the cross, giving His blood for me, so that forgiveness was available when I needed it. Aren’t you?  Dave Egner
Sufficient is the blood of Christ
To cleanse us from all sin,
But daily we must claim its power
To keep us pure within.  D. De Haan
READ: Hebrews 9:11-22
Jesus takes our sin and gives us His salvation.
The Bible in one year:
• Deuteronomy 30-31
• Mark 15:1-25