my assurance is as sure as He has secured it

Hebrews 6:17-20

¹⁷ So when God desired to show more convincingly to the heirs of the promise the unchangeable character of his purpose, he guaranteed it with an oath,¹⁸ so that by two unchangeable things, in which it is impossible for God to lie, we who have fled for refuge might have strong encouragement to hold fast to thehope set before us. ¹⁹ We have this as a sure and steadfast anchor of the soul, a hope that enters into the inner place behind the curtain,²⁰ where Jesus has gone as a forerunner on our behalf, having become a high priest forever after the order of Melchizedek.

Check out the words used in the passage above:

con·vinc·ing adj.

1. Serving to convince:

2. Believable; plausible:

un·change·a·ble adj.

Not to be altered; immutable:

guar·an·tee tr.v.guar·an·teed, guar·an·tee·ing, guar·an·tees

1. To assume responsibility for the debt, default, or miscarriage of.

2. To assume responsibility for the quality or performance of:.

3. To undertake to do, accomplish, or ensure (something) for another:.

4. To make certain:.

5. To furnish security for.

6. To express or declare with conviction:

oath n.

1.  A solemn, formal declaration or promise to fulfill a pledge, often calling on God, a god, or a sacred object as witness.

2. The words or formula of such a declaration or promise.

3. Something declared or promised.

im·pos·si·ble adj.

1. Incapable of having existence or of occurring.

2. Not capable of being accomplished

3. Unacceptable; intolerable

4. Extremely difficult to deal with or tolerate:

hold·fast v.

1. stick to firmly

hope n

1. (sometimes plural) a feeling of desire for something and confidence in the possibility of its fulfilment

2. a reasonable ground for this feeling

3. a person or thing that gives cause for hope

4. a thing, situation, or event that is desired

sure adj.sur·er, sur·est

1. Impossible to doubt or dispute; certain.

2. Not hesitating or wavering; firm:.

3. Confident, as of something awaited or expected:

4. Bound to come about or happen; inevitable:.

5. Having one's course directed; destined or bound:.

6. Certain not to miss or err; steady:.

7. Worthy of being trusted or depended on; reliable.

8. Free from or marked by freedom from doubt:.

9. Careful to do something:

10. Obsolete Free from harm or danger; safe

stead·fast adj.

1. Fixed or unchanging; steady.

2. Firmly loyal or constant; unswerving

an·chor n.

1. A source of security or stability.

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And all of the above, “on our behalf.”

2 Corinthians 5:18-21

¹⁸ All this is from God, who through Christ reconciled us to himself and gave us the ministry of reconciliation;¹⁹ that is, in Christ God was reconciling the world to himself, not counting their trespasses against them, and entrusting to us the message of reconciliation.²⁰ Therefore, we are ambassadors for Christ, God making his appeal through us.We implore you on behalf of Christ, be reconciled to God. ²¹ For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.