A life for God or a life with God?
The former is about impact, being driven and activity. The latter is about relationship and acceptance.
I think a life with God (Love the Lord your God with all your heart soul mind and strength) overflows into a life for God (and Love your neighbour as yourself). However, if our core belief is for we are in danger of burnout and not seeing what is right in front of us.
Martha and Mary (Luke 10)
38 Now as they went on their way, Jesus entered a village. And a woman named Martha welcomed him into her house. 39 And she had a sister called Mary, who sat at the Lord’s feet and listened to his teaching. 40 But Martha was distracted with much serving. And she went up to him and said, “Lord, do you not care that my sister has left me to serve alone? Tell her then to help me.” 41 But the Lord answered her, “Martha, Martha, you are anxious and troubled about many things, 42 but one thing is necessary. Mary has chosen the good portion, which will not be taken away from her.”