Greetings again ,
But aftir that the fulfilling of tyme cam, God sente his sone Galatians 4:4 (Wycliffe)
John Wycliffe translated the Bible around 1384 and today we can read recent translations which declare the same message. Galatians was written about 1300 years before Wycliffe translated it.
In the fullness of time ...
There were ways that the LORD dealt with the children of Israel which were according to the covenant promise with Abraham yet in the words of Jesus,
O, Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
Matthew 23:37
Animal sacrifices pointed to Christ Who was yet to come. The sacrifices themselves were not able to fulfil the Law, neither could they replace the Arc of the LORD. However they were part of the keeping of Israel.
Galatians 3: 23-26
But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed. Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
But after that faith is come, we are no longer under a schoolmaster. For ye are all the children of God by faith in Christ Jesus.
Yet, in the fullness of time ...
For Thou hast made Him a little lower than the angels, and hast crowned Him with glory and honour. Psalm 8:5
There is also the need for redemption to consider. Not until the time that God appointed could our Redeemer come and purchase our redemption.
Titus 2:13-14
Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; Who gave Himself for us, that He might redeem us from all iniquity, and purify unto Himself a peculiar people, zealous of good works
While I understand your questioning we could also apply the same logic in questioning many things both in and out of Scripture.
Perhaps this might help,
When one plants a seed, as keen as they may be to harvest the fruit bourne from that seed, a time of waiting must precede. With the wait must often be a tending to the plant that grows as well as many diverse events and change, usually also seasons, particularly that which ripens the fruit. Insects often must simultaneously be borne through the process peculiar to them, remembering that all insects start off as grubs (like us!) and yet in due time they appear to help with fertilization which must happen before any fruit can set. Or it might be simply a breeze that is required for fertilization but that breeze itself must come from a place which no man knows.
In the case of trees, often years of pruning is required in order for good yield to be had.
Imagine if we could simply water seed, wait a moment and then eat ripe fruit!
And Jesus went about all the cities and villages, teaching in their synagogues, and preaching the gospel of the kingdom, and healing every sickness and every disease among the people.
But when He saw the multitudes, He was moved with compassion on them, because they fainted, and were scattered abroad, as sheep having no shepherd.
Then saith He unto His disciples, The harvest truly is plenteous, but the labourers are few; Pray ye therefore the Lord of the harvest, that He will send forth labourers into His harvest.
Matthew 9:35-38
In fullness of time God sent His Son.
Bless you ....><>