Regarding Mark 1:40-41, I agree that Scripture clearly teaches Jesus is sinless, so any interpretation of less clear passages must not contradict that doctrine, and viewing Jesus as having righteous indignation because of the implied cause of being insulted by the leper questioning his willingness to have compassion for people does NOT contradict that doctrine, even though it is not explicitly stated, which is why this reading can be considered as a possible logical nuance.
Scripture does not teach that God condemns God's willingness to do something.
Sometimes God may not answer because it is not in line with His will.
For example, while Jesus did help Gentiles when asked, He did not go out to the way of the Gentiles to heal them.
Jesus specifically told His disciples not to go into the area of the Gentiles to heal, etc.
Praying “If Thou Wilt” Is an Expression of Faith, Not Doubt
Scripture repeatedly presents
conditioning one’s request on God’s will as the
proper posture of faith, not as uncertainty about God’s power or goodness.
1. The New Testament explicitly defines confident prayer this way
1 John 5:14 (KJV) states:
“And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us.”
Here, confidence in prayer is not framed as demanding outcomes or presuming God’s intentions, but as submitting requests to His will. The verse assumes that not everything a believer desires necessarily aligns with God’s purposes, and that recognizing this is spiritually healthy.
If phrasing a request with reference to God’s will were an expression of doubt, then this verse would paradoxically redefine doubt as confidence. That is impossible.
2. The Lord’s Prayer centers piety on submission to God’s will
Jesus Himself teaches believers to pray:
“Thy will be done in earth, as it is in heaven.”
This is not a concession to uncertainty. It is the
model prayer given by Christ. Submission to God’s will is presented as the heart of godly prayer, not as a failure of faith.
Therefore, the concept that “if Thou wilt” language implies unbelief is directly contradicted by Christ’s own instruction.
Old Testament Saints Freely Use “If Thou Wilt” Language Without Rebuke
The Old Testament reinforces the same pattern. Faithful servants of God repeatedly speak in conditional terms that acknowledge God’s sovereign will, and Scripture never treats this as sinful doubt.
3. Gideon’s conditional request receives divine accommodation, not rebuke
Gideon says:
“If thou wilt save Israel by mine hand, as thou hast said…” (Judges 6)
He then asks for signs, which God grants. Gideon even pleads, “Let not thine anger be hot against me,” yet
no rebuke is recorded for acknowledging the contingency of God’s will.
Importantly, the narrative distinguishes between Gideon’s fear and God’s patience, not between faith and unbelief. The conditional language itself is never condemned.
4. Moses places the outcome entirely in God’s hands without censure
Moses intercedes for Israel, saying:
“Yet now, if thou wilt forgive their sin… and if not, blot me, I pray thee, out of thy book which thou hast written.”
This is one of the most profound acts of intercession in Scripture. Moses conditions the request entirely on God’s will, yet Scripture presents this moment as sacrificial, faithful, and righteous.
If conditional language implied doubt, Moses would stand condemned here. Instead, he stands as a model intercessor.
5. Christ Himself modeled submission to the Father’s will
If questioning willingness were sinful, then Jesus’ own prayers would become impossible to explain.
Luke 22:42 (KJV)
“Saying, Father, if thou be willing, remove this cup from me: nevertheless not my will, but thine, be done.”
This is the clearest possible proof that acknowledging God’s will is not condemned.
It is
perfect obedience, not doubt.
Application to Mark 1:40–41
When the leper says:
“If thou wilt, thou canst make me clean,”
he is speaking
within a well established biblical framework of faithful prayer.
Now, the ball is back in your court. If you cannot establish clearly from Scripture elsewhere that God gets angry when somebody provides a conditional "If thou will" clause or something similar when they talk with God or Christ then you are merely imposing something into the Bible that is not there by an odd-ball textual blunder in history (i.e., Codex D (Codex Bezae) and a few Latin manuscripts) which does not agree with the majority of manuscripts. Double check the internet or Ai's like Perplexity.ai, or ChatGPT.com to see if there is any verse that supports you here. I have searched and I have not found one. Until you do, you are saying that only in this instance God was upset for something that others have done countless times before in the Bible. So until you prove otherwise, you are holding to a reading that makes it appear like Jesus sinned, but you simply do not want to see it because you have been conditioned to accept the idea of a shape-shifter text is normal when even that idea is not in Scripture, either.
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