Malachi 3:7-8 Even from the days of your fathers ye are gone away from mine ordinances, and have not kept them. Return unto me, and I will return unto you, saith the LORD of hosts. But ye said, Wherein shall we return? Will a man rob God? Yet ye have robbed me. But ye say, Wherein have we robbed thee? In tithes and offerings.
In the above passage, we find that tithing is an ordinance.
Ephesians 2:14-15 For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us; Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;
The above verses reveal that the ordinances were abolished by Christ.
One might ask, "How is tithing enmity?" Good question!
2 Corinthians 3:7 reveal to us that the commandments were a ministration of death. We, who are Christ's have been brought into a new life... His life. The Law is at enmity with Grace. Grace liberates, the Law keeps in bondage. Christ set us free from the Law.
They were the administration of death because eternal life is not promised under the O.C. In fact this is a very true scripture...
Jas 2:10 For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.
Jas 2:11 For he that said, Do not commit adultery, said also, Do not kill. Now if thou commit no adultery, yet if thou kill, thou art become a transgressor of the law.
Jas 2:12 So speak ye, and so do, as they that shall be judged by the law of liberty.
The sacrifice of Christ was not given to them at the time. They only had a shadow (a schoolmaster) that looked forward to it. The Law cannot give life, it is simply the definition of sin...
Rom 7:7 What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet.
1Jn 3:4 Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
In fact, 100 lifetimes of 100 years each of perfectly keeping the Law does not earn eternal life. It is teh free gift of God...
Eph 2:8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
The faith that saves us is not even our own, it is the gift of God. Yet wilfull disobedience (a pattern of sinning without repentance) will bring death...
Heb 10:26 For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
Heb 10:27 But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries.
Heb 10:28 He that despised Moses' law died without mercy under two or three witnesses:
Heb 10:29 Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace?
Heb 10:30 For we know him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people.
Heb 10:31 It is a fearful thing to fall into the hands of the living God.
The Law is not done away, grace is the free, unearned, undeserved forgiveness for breaking that Law.