Where one sees contradiction, I see beautiful truth.
Let every skilled craftsman among you come and make all that the Lord has commanded: the tabernacle, its tent and its coverings, its hooks and its frames, its bars, its pillars, and its bases... (Exodus 35:10-11)
Then all the congregation of the people of Israel departed from the presence of Moses. And they came, everyone whose heart stirred him, and everyone whose spirit moved him, and brought the Lord's contribution to be used for the tent of meeting, and for all its service, and for the holy garments. So they came, both men and women. All who were of a willing heart brought brooches and earrings and signet rings and armlets, all sorts of gold objects, every man dedicating an offering of gold to the Lord. And every one who possessed blue or purple or scarlet yarns or fine linen or goats' hair or tanned rams' skins or goatskins brought them. Everyone who could make a contribution of silver or bronze brought it as the Lord's contribution. And every one who possessed acacia wood of any use in the work brought it. And every skilled woman spun with her hands, and they all brought what they had spun in blue and purple and scarlet yarns and fine twined linen. All the women whose hearts stirred them to use their skill spun the goats' hair. And the leaders brought onyx stones and stones to be set, for the ephod and for the breastpiece, and spices and oil for the light, and for the anointing oil, and for the fragrant incense. All the men and women, the people of Israel, whose heart moved them to bring anything for the work that the Lord had commanded by Moses to be done brought it as a freewill offering to the Lord. (Exodus 35:20-29)
The heart is deceitful above all things, and desperately sick; who can understand it? (Jeremiah 17:9)
And Moses called Bezalel and Oholiab and every craftsman in whose mind the Lord had put skill, everyone whose heart stirred him up to come to do the work. And they received from Moses all the contribution that the people of Israel had brought for doing the work on the sanctuary. They still kept bringing him freewill offerings every morning, so that all the craftsmen who were doing every sort of task on the sanctuary came, each from the task that he was doing, and said to Moses, "The people bring much more than enough for doing the work that the Lord has commanded us to do." So Moses gave command, and word was proclaimed throughout the camp, "Let no man or woman do anything more for the contribution for the sanctuary." So the people were restrained from bringing, for the material they had was sufficient to do all the work, and more. (Exodus 36:2-7)
For it is God who works in you, both to will and to work for his good pleasure. (Philippians 2:13)
For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them. (Ephesians 2:10)