Gentlemen, please let's get back to what Scripture says, not debating meaningless ideas ("works" salvation), or slinging mud. Scripture says that we cannot earn salvation because it was a gift given before the world was created (1 Pet 1:20). But it also says that we must qualify to receive it by meeting the conditions God placed upon its reception (Mark 16:16, Acts 2:38, Col 2:11-14, Rom 6:1-4, 1 Pet 3:21, Acts 22:16, Rom 10:9-10).
Now that's good advice. But I still have a problem with meeting certain conditions to receive a free gift. I hate to bring up the dreaded W word but me certain conditions to me means jumping through hoops and accomplishing certain things. Let's take a look at the scriptures you posted.
He who believes [who adheres to and trusts in and relies on the Gospel and Him Whom it sets forth] and is baptized will be saved [from the penalty of eternal death]; but he who does not believe [who does not adhere to and trust in and rely on the Gospel and Him Whom it sets forth] will be condemned. Mk 16:16.
Pretty straightforward, You believe in Jesus. and you're saved. No extracurricular activity.
And Peter answered them, Repent (change your views and purpose to accept the will of God in your inner selves instead of rejecting it) and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of and release from your sins; and you shall receive the gift of the Holy Spirit. Ac ts2:38.
Nothing we do there either that's baptism of the Holy Spirit that happens automatically believers. We are Filled with the Spirit And become members of the body of Christ.
In Him also you were circumcised with a circumcision not made with hands, but in a [spiritual] circumcision [performed by] Christ by stripping off the body of the flesh (the whole corrupt, carnal nature with its passions and lusts).
12 [Thus you were circumcised when] you were buried with Him in [your] baptism, in which you were also raised with Him [to a new life] through [your] faith in the working of God [as displayed] when He raised Him up from the dead.
13 And you who were dead in trespasses and in the uncircumcision of your flesh (your sensuality, your sinful carnal nature), [God] brought to life together with [Christ], having [freely] forgiven us all our transgressions,
14 Having cancelled and blotted out and wiped away the handwriting of the note (bond) with its legal decrees and demands which was in force and stood against us (hostile to us). This [note with its regulations, decrees, and demands] He set aside and cleared completely out of our way by nailing it to [His] cross. Col 2:11–14.
I don't see anything man does there either.
WHAT SHALL we say [to all this]? Are we to remain in sin in order that God’s grace (favor and mercy) may multiply and overflow?
2 Certainly not! How can we who died to sin live in it any longer?
3 Are you ignorant of the fact that all of us who have been baptized into Christ Jesus were baptized into His death?
Ro 6:1–3.
Nothing there either.
21 And baptism, which is a figure [of their deliverance], does now also save you [from inward questionings and fears], not by the removing of outward body filth [bathing], but by [providing you with] the answer of a good and clear conscience (inward cleanness and peace) before God [because you are demonstrating what you believe to be yours] through the resurrection of Jesus Christ.
1 Pe 3:21.
If you take that to me water baptism after salvation then the definition would be from the above scripture "An outward sign of an inward conversion". It means just what it says we're demonstrating that we're believers by getting baptized. That doesn't make us a believer no matter how many times you get baptized.
And now, why do you delay? Rise and be baptized, and by calling upon His name, wash away your sins
Acts 22:16.
What washes away the sins? Calling on his name believing him. That's our faith. Remember by faith and not by works.
Because if you acknowledge and confess with your lips that Jesus is Lord and in your heart believe (adhere to, trust in, and rely on the truth) that God raised Him from the dead, you will be saved.
Ro 10:9.
I'll give you this one that's a definite condition. Good old Paul he always knows what he's talking about.
So one out of the seven will still get you to heaven.